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Sakaki
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 Posted: Thu Apr 12, 2018 10:07 am Post subject: |
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| orion777 wrote: | | emerge --sync and then eix --update? |
Yes, if you haven't run an update for a while... or just use eix-sync as a shorthand (if not using webrsync-gpg).
If eix is still out of alignment, you can force a full db refresh with "eix-sync -0" (zero) (this doesn't hit the network for updates, just re-reads everything you have locally).
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roylongbottom
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Joined: 13 Feb 2017
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| Posted: Thu Apr 12, 2018 11:55 am Post subject: |
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Sakaki
| Quote: | Per my earlier post, I have now gone ahead and created an RPi3 optimized binary kernel package
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Thanks, after I have run all my benchmarks, I will try the new kernel
| Quote: | PS have you been able to determine whether the RPi3 B+ has any better thermal stability than the 3B, in light of its heat spreader?
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I carried out a quick test via Raspbian, running four programs carrying out integer calculations. For original RPi 3 and 3B are examples of one of the four logs (that are essentially the same), with CPU MHz and temperature included. The original might have an inefficient heatsink but the 3B+ without one, in a plastic case.
The 3B+ switched to 1200 MHz, within the first 80 seconds but remained there for more than 6 minutes. After 80 seconds the original intermittently ran at 600 MHz.
| Code: |
Original RPi 3
Integer Stress Test Linux/ARM A7 v1.0 Mon Jul 11 19:58:19 2016
40 KBytes Cache or RAM Space, 80 Seconds Per Test, 12 Tests
MHz °C
Write/Read 1200 62.8
1 2472 MB/sec Pattern 00000000 Result OK 2413986 passes 735 84.9
2 1853 MB/sec Pattern FFFFFFFF Result OK 1809189 passes 600 83.3
3 1792 MB/sec Pattern A5A5A5A5 Result OK 1749631 passes 600 83.3
4 1770 MB/sec Pattern 55555555 Result OK 1728301 passes 600 83.3
5 1733 MB/sec Pattern 33333333 Result OK 1692058 passes 891 83.8
6 1745 MB/sec Pattern F0F0F0F0 Result OK 1704346 passes 864 84.4
Read
1 1788 MB/sec Pattern 00000000 Result OK 3491600 passes 714 85.4
2 1723 MB/sec Pattern FFFFFFFF Result OK 3366300 passes 600 84.9
3 1670 MB/sec Pattern A5A5A5A5 Result OK 3261500 passes 600 83.3
4 1661 MB/sec Pattern 55555555 Result OK 3244700 passes 600 83.8
5 1662 MB/sec Pattern 33333333 Result OK 3246100 passes 744 85.4
6 1647 MB/sec Pattern F0F0F0F0 Result OK 3217300 passes 600 83.8
Stand Alone
Write/Read
1 3099 MB/sec
Read
1 3220 MB/sec
###############################################################################
RPi 3B+
Integer Stress Test Linux/ARM A7 v1.0 Thu Mar 22 18:58:18 2018
40 KBytes Cache or RAM Space, 80 Seconds Per Test, 12 Tests
MHz °C
Write/Read 1400
1 3399 MB/sec Pattern 00000000 Result OK 3319566 passes 1200 70.9
2 3169 MB/sec Pattern FFFFFFFF Result OK 3094903 passes 1200 75.2
3 3169 MB/sec Pattern A5A5A5A5 Result OK 3094857 passes 1200 77.4
4 3170 MB/sec Pattern 55555555 Result OK 3095448 passes 1200 79.5
5 3151 MB/sec Pattern 33333333 Result OK 3077499 passes 1195 80.6
6 3051 MB/sec Pattern F0F0F0F0 Result OK 2979893 passes 1087 80.6
Read
1 3140 MB/sec Pattern 00000000 Result OK 6133000 passes 1087 80.6
2 3049 MB/sec Pattern FFFFFFFF Result OK 5955700 passes 1141 81.1
3 2881 MB/sec Pattern A5A5A5A5 Result OK 5626600 passes 1034 81.7
4 2796 MB/sec Pattern 55555555 Result OK 5461900 passes 1034 81.7
5 2786 MB/sec Pattern 33333333 Result OK 5441200 passes 1034 81.7
6 2759 MB/sec Pattern F0F0F0F0 Result OK 5389200 passes 980 82.2
Stand Alone
Write/Read
1 3760 MB/sec
Read
1 3740 MB/sec
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Sakaki
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| Posted: Thu Apr 12, 2018 4:30 pm Post subject: |
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roylongbottom,
1200 not 1400 MHz peak for the RPi3B+; is that what is expected?
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roylongbottom
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| Posted: Thu Apr 12, 2018 10:39 pm Post subject: |
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Sakaki
| Quote: | | 1200 not 1400 MHz peak for the RPi3B+; is that what is expected? |
In my case, the MHz reduced from 1400 to 1200 MHz after two recorded samples or 32.3 seconds, when temperature of 69.8'C was indicated. Claimed expected behaviour is provided in a graph down the page in:
https://www.raspberrypi.org/blog/raspberry-pi-3-model-bplus-sale-now-35/
Here, MHz reduces to 1200 at 70'C. In my case, temperature would not have increased as much if I used a decent heatsink or even less in my Flirc case (if the built-in heatsingk still makes contact with the CPU).
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Sakaki
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| Posted: Tue Apr 17, 2018 7:04 pm Post subject: |
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Hello,
if you are running a 'pure' 64-bit Gentoo system on your RPi3 B / B+ (such as my gentoo-on-rpi3-64bit image), you may sometimes find yourself wishing you could just install and run a particular 32-bit package from Raspbian, if it has not yet been added to the Gentoo arm64 tree.
Well, the good news is you can, while still running your 64-bit Gentoo, since mixed-mode userland is permitted on ARMv8! I've just posted a new wiki tutorial, showing how to install a 32-bit Raspbian chroot on your gentoo-on-rpi3-64bit system, then, using this, install 32-bit apps (using apt-get) from Raspbian, and run them alongside 64-bit Gentoo apps on your (64-bit) desktop. The example app I use in the tutorial is Lazarus (but you can obviously install anything you like).
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roylongbottom
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| Posted: Thu Apr 26, 2018 4:19 pm Post subject: |
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Raspberry Pi 3B+ Memory Benchmarks
Full details of 32 bit and 64 bit memory benchmarks (and single core tests) are available at ResearchGate in Raspberry Pi 3B+ 32 Bit and 64 Bit Benchmarks and Stress Tests.pdf, from the following link (then click on down arrow to select download):
https://www.researchgate.net/publication/324694380_Raspberry_Pi_3B_32_Bit_and_64_Bit_Benchmarks_and_Stress_Tests
This includes 3B+ comparisons with the older Mode 3B and 64 bit versus 32 bit performance. The latter is repeated below for the newer processor (3B similar). The 3B+/3B performance is essentially proportional to respective CPU MHz speeds, where date from caches is processed, but 3B+ is often shown to be slightly slower with RAM data transfers. The benchmarks are as follows, most doubling up data size used, to cover caches, and RAM, with performance measured in MegaBytes per second. Example full results and comparisons are provided below.
MemSpeed - carries out the calculations shown in the following, the first being of the same format as the Linpack benchmark time dependent function. Maximum MFLOPS are also shown for these, plus MFLOPS/MHz ratios, these being higher that those for Linpack, mainly due to the smoother data flow and slightly using L1 cache based results. Best 64 bit performance gains were using double precision floating point but one result indicates that the older RPi was faster using RAM based data.
| Code: |
Memory Reading Speed Test vfpv4 32 Bit Version 1
Memory x[m]=x[m]+s*y[m] Int+ x[m]=x[m]+y[m] x[m]=y[m]
KBytes Dble Sngl Int32 Dble Sngl Int32 Dble Sngl Int32
Used MB/S MB/S MB/S MB/S MB/S MB/S MB/S MB/S MB/S
3B+/3B
Raspberry Pi 3B+ CPU 1400 MHz, SDRAM ? Avg Gain
8 1899 2125 4041 2783 2624 4448 3164 3693 3693 1.17 L1
16 1901 2128 4058 2791 2628 4462 3177 3703 3707
32 1852 2049 3817 2686 2508 4161 3186 3715 3711
64 1796 1959 3574 2542 2367 3855 2945 3347 3347 1.16 L2
128 1826 1989 3741 2600 2408 4031 3042 3506 3508
256 1833 1995 3771 2617 2414 4068 2860 3616 3617
512 1517 1618 2587 2039 1911 2687 2459 2825 2832
1024 968 1098 1221 1172 1140 1211 1455 1144 1137 0.98 RAM
2048 911 980 1060 1038 1026 1062 1013 941 935
4096 913 993 1064 1047 1038 948 992 902 903
8192 926 1013 1077 1074 1065 1085 782 784 783
Max MFLOPS 238 532
Per MHz 0.17 0.38
64 bit 0.43 0.52
#################### Compare 64 bit / 32 bit Pi 3B+ ######################
8 2.54 1.36 1.08 2.22 1.51 1.09 1.70 1.17 1.17
256 2.12 1.39 1.05 1.86 1.53 1.06 1.71 1.13 1.13
8192 0.71 1.19 1.17 1.14 1.03 1.17 1.29 1.38 1.38
#######################################################################
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NeonSpeed - executes the same functions as MemSpeed, but with all floating point calculations using single precision floating point (for compatibility with NEON). Some normal calculations are also included for comparison purposes. The NEON calculations are carried out using NEON Intrinsic Functions but the latest compilers convert these into more appropriate vector instructions. This leads to little difference between 32 bit and 64 bit speed, the former being faster in one case. For some reason, 32 bit normal calculations were faster than in MemSpeed, but maximum NEON MFLOPS per MHz were significantly faster.
| Code: |
NEON SP Float & Integer Benchmark RPi 3B+ 64 Bit
Memory Float v=v+s*v Int v=v+v+s Neon v=v+v 3B/3B+
KBytes Norm Neon Norm Neon Float Int Avg Gain
16 2724 5109 3961 4841 5446 5607 1.16 L1
32 2612 4645 3726 4450 4968 5036
64 2523 4247 3540 4150 4521 4519 1.16 L2
128 2583 4363 3666 4253 4616 4635
256 2576 4314 3674 4254 4591 4631
512 1852 2871 2608 2466 2916 2698
1024 1222 1207 1305 1179 1280 1216 1.08 RAM
4096 1157 1144 1214 1109 1181 1160
16384 1175 1245 1244 1134 1191 1180
65536 1143 1258 1185 909 1144 1260
Max MFLOPS 681 1277
Per MHz 0.49 0.91
32 Bit 0.57 0.84
#################### Compare 64 bit / 32 bit Pi 3B+ ######################
16 0.86 1.10 0.99 0.99 1.05 1.02
256 0.88 1.07 0.98 1.01 1.06 1.00
65536 0.85 0.94 0.88 0.90 0.91 0.93
#######################################################################
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BusSpeed - is designed to identify reading data in bursts over buses and possible maximum data transfer speed from RAM (using 1 core - see MP version). The program starts by reading a word (4 bytes) with an address increment of 32 words (128 bytes) before reading another word. The increment is reduced by half on successive tests, until all data is read. Data is read using inner loops containing 64 AND statements, that appear to essentially generate the same code for 32 bit and 64 bit compilations, with only 32 bit data words being used. Surprisingly, the 64 bit version produced slow speeds on reaing all data from what should be L1 cache.
| Code: | BusSpeed 64 Bit
Memory Inc32 Inc16 Inc8 Inc4 Inc2 Read 3B+ Gain
KBytes Words Words Words Words Words All Read All
16 3823 4251 4638 4945 5045 3854 1.15 L1
32 1543 1677 2423 3331 4152 3680
64 672 694 1306 2169 3300 3577 1.17 L2
128 635 648 1211 2055 3202 3604
256 600 615 1163 1971 3152 3612
512 328 278 695 1272 2256 2978
1024 94 140 281 543 960 2075 1.12 RAM
4096 99 128 259 448 1016 1931
16384 125 129 258 500 898 1863
65536 125 114 257 500 1015 1898
#################### Compare 64 bit / 32 bit Pi 3B+ ######################
16 1.02 1.03 0.98 1.00 0.99 0.76
256 0.96 0.97 1.00 0.96 0.99 0.90
65536 0.99 0.88 1.02 1.02 1.01 1.10
#######################################################################
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Fast Fourier Transforms - There are two FFT benchmarks, the second one benefiting from being optimised to make better use of burst data transfers, with the procedures dependent of skipped sequential access. FFT sizes vary between 1K and 1024K, covering caches and RAM. Three copies are run using both single and double precision data, the middle ones used here, as best choice due to varying millisecond running times. Because of the latter, 3B/3B+ comparisons are not as constant as for other benchmarks, this being reflected in the different 64/32 bit comparisons provided below.
With running times of the smaller FFTs being less than a millisecond, that for the first few measurements can be extended with the CPU MHz scaling governor set as on demand. A performance setting is required to produce more acceptable results. An example is shown below.
| Code: | FFT Benchmarks
Size -------- milliseconds --------
K Single Double Single Double
scaling_governor
performance ondemand
1 0.17 0.14 0.40 0.14
2 0.38 0.32 0.93 0.32
4 1.07 0.77 1.97 0.75
8 2.13 1.89 4.64 1.76
16 4.57 5.83 4.47 5.83
#################### Compare 64 bit / 32 bit ######################
RPi3 RPi3B+
K Single Double Single Double
FFT1
1 to 8 1.05 0.86 1.06 0.90
16 to 128 1.17 0.83 1.14 1.06
256 to 1M 1.26 0.88 1.58 1.13
FFT3C
1 to 8 1.24 0.89 1.17 0.88
16 to 128 1.05 1.04 1.15 1.17
256 to 1M 1.14 1.01 1.26 1.16
#######################################################################
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Sakaki
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| Posted: Sun Apr 29, 2018 3:35 pm Post subject: |
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RPi3 B+ Ethernet Issues (RPi3 B users unaffected) and Workaround
gentoo-on-rpi3-64bit users,
Currently, there appear to be two issues with the RPi3 B+'s LAN7515 chip which can significantly affect performance (and which will need fixes in the customized lan78xx driver, most likely). As far as I can tell, these affect both 64 and 32-bit users, all distros.
The first issue occurs when connecting your RPi3 B+ to an Ethernet switch that does not have flow control turned on (as is the case in many datacentres, for example). RPF engineer comment (quotes below all from this thread on the forums):
| jamesh wrote: |
Reports so far.
Been hitting the ethernet with a stick for the last few days, that stick being iperf3. I have been testing the onboard, and two different USB->GigE dongles.
The main conclusion we have come to - if your switch does NOT have flow control turned on, you will suffer a large drop in performance. This is due to the Pi being unable to service incoming data at gig speeds, and therefore a lot of retries are required for dropped frames.
[...]
Finally, we are talking to Microchip to see what can be done to improve performance. It's their chip and their driver. However, we are still investigating.
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The second issue concerns bad Ethernet performance once a certain amount of data (around 2GB?) has been transferred. RPF engineer comment:
| jamesh wrote: |
| ErgatesthiAnt wrote: |
I have a suspicion I'm also having related network troubles on my 3B+. If I copy more than a few GB via SMB, the 3B+ network becomes unreliable and stops being able to copy files. Extremely frustrating. I did set flow control to on in my Netgear switch, and that meant that failures took longer to occur and copy speeds were a little higher (~18MB/s), but the same problem still occurs.
For now I've gone back to my 3B. Should I be returning my 3B+?
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We have had a number of reports on large transfers dying when using Samba . I think its unrelated to the issue in this thread, but it is being looked in to.
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I have personally experienced this (I think), where a large rsync backup of my RPi3 B+ build server choked (repeatedly) about half way (several GB) through, connected over a local LAN (I have never had any issues running the same rsync script on an RPi3 B).
Temporary Workaround
If you are using your RPi3 B+ to provide production services over Ethernet, I recommend using ethtool to reduce the advertised performance to 100Mbit (that of the old RPi3B's adaptor) pro tem. This workaround seems to prevent the problems occurring.
NB: If you only use your RPi3 B+'s Ethernet for light access (e.g. ssh), or use your RPi3 B+'s WiFi networking primarily, or use an RPi3 B, you need take no action at this stage.
To do so, open a terminal on your gentoo-on-rpi3-64bit RPi3 B+ system, and issue:
| Code: | demouser@pi64 ~ $ sudo emaint sync --repo rpi3
demouser@pi64 ~ $ sudo emerge -v sys-apps/ethtool
demouser@pi64 ~ $ sudo mousepad /etc/local.d/slow-down-eth0.start &>/dev/null& |
The mousepad editor should open, onto the (new) file /etc/local.d/slow-down-eth0.start. Copy the following into that file:
| Code: | #!/bin/bash
# slow down eth0 to 100Mbit until properly fixed
# see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=208512
>&2 echo "WARNING: setting eth0 to 100Mbit max"
ethtool -s eth0 speed 100 duplex full autoneg on |
Save the file, and exit mousepad. Then issue:
| Code: | demouser@pi64 ~ $ sudo chmod -v ugo+x /etc/local.d/slow-down-eth0.start
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to make the script runnable at (each) boot time.
Finally, run the script now, so it will take effect immediately (no need to reboot):
| Code: | demouser@pi64 ~ $ sudo /etc/local.d/slow-down-eth0.start
WARNING: setting eth0 to 100Mbit max
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You can check the change has been taken up, with:
| Code: | demouser@pi64 ~ $ sudo ethtool eth0 | grep "Advertised link modes:"
Advertised link modes: 100baseT/Full |
When a fix to the kernel driver (covering both the above issues) is released, I'll post again here, at which point you can simply delete the /etc/local.d/slow-down-eth0.start file, if you are using it.
Apologies for the inconvenience ><
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orion777
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| Posted: Sun Apr 29, 2018 7:53 pm Post subject: |
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Good evening!
I was migrating to the latest version of the assembly. Now I'm getting extremelly high loads reported, however we know that RPI3 has onle 4 kernels..
| Code: | Load avg: 14.1, 11.6, 7.5
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How to understand it?
And one more question: if I was installing specific version of some software, will it be updated to the latest version during genup? |
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roylongbottom
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| Posted: Sun Apr 29, 2018 8:50 pm Post subject: |
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LAN Speed
I have installed SAMBA in Gentoo for RPi 3B+ and would like to make use of it in testing my LanSpeed benchmark. Previously I have just edited samba.conf by copying a defined file (with possible mods). This time, there was no conf file to edit but, in vain, I tried a different one. Can anyone help.?
The LanSpeed benchmark runs properly on the RPi 3B+ via Raspbian but, at 32 bits, probably as would be expected, produces a segmentation fault in attempting to allocate 2048 MB of memory. However, it works at 2000 MB, writing three files of this size to a PC. Writing speed was 31 to 34 MB/sec (maybe speed to buffer) and reading was at 22 to 27 MB/sec (>2 times original RPi3 speed).
I wonder what will happen at 64 bits.
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Sakaki
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| Posted: Mon Apr 30, 2018 12:11 am Post subject: |
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| orion777 wrote: | Good evening!
I was migrating to the latest version of the assembly. Now I'm getting extremelly high loads reported, however we know that RPI3 has onle 4 kernels..
| Code: | Load avg: 14.1, 11.6, 7.5
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How to understand it? |
For more than you ever wanted to know on Linux load averages ^-^, see this Wikipedia article, and "Linux Load Averages: Solving the Mystery" by Brendan Gregg. From the latter (emphasis added): | Quote: | I grew up with OSes where load averages meant CPU load averages, so the Linux version has always bothered me. Perhaps the real problem all along is that the words "load averages" are about as ambiguous as "I/O". Which type of I/O? Disk I/O? File system I/O? Network I/O? ... Likewise, which load averages? CPU load averages? System load averages? Clarifying it this way lets me make sense of it like this:
- On Linux, load averages are (or try to be) "system load averages", for the system as a whole, measuring the number of threads that are working and waiting to work (CPU, disk, uninterruptible locks). Put differently, it measures the number of threads that aren't completely idle. Advantage: includes demand for different resources.
- On other OSes, load averages are "CPU load averages", measuring the number of CPU running + CPU runnable threads. Advantage: can be easier to understand and reason about (for CPUs only).
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Note that 'disk, uninterruptible locks' part... from the Wikipedia article (emphasis added): | Quote: | | An idle computer has a load number of 0 (the idle process isn't counted). Each process using or waiting for CPU (the ready queue or run queue) increments the load number by 1. Each process that terminates decrements it by 1. Most UNIX systems count only processes in the running (on CPU) or runnable (waiting for CPU) states. However, Linux also includes processes in uninterruptible sleep states (usually waiting for disk activity), which can lead to markedly different results if many processes remain blocked in I/O due to a busy or stalled I/O system.[1] This, for example, includes processes blocking due to an NFS server failure or too slow media (e.g., USB 1.x storage devices). Such circumstances can result in an elevated load average which does not reflect an actual increase in CPU use (but still gives an idea of how long users have to wait). |
Translating this somewhat liberally, a load of 14.1 (the first number in your load average list) on a 4 core processor means that over the last minute (in an exponentially averaged sense) there were 14.1/4 = 3.5 runnable or I/O blocked threads per core.
The system is indeed highly loaded, but much of it probably relates to the @world update triggered by genup (see below) trying to merge large numbers of binary packages to a slow I/O subsystem (e.g. your RPi3's microSD card). Note that by default though, genup runs emerges at maximum niceness (minimum system priority), so although your machine may become sluggish, it shouldn't completely lock up when an update is happening - if one of those "ready to run" threads is e.g. due to the GUI, that will have higher priority than the emerge-related threads, and get CPU time (unless the system is swapping heavily of course, in which case the GUI-related thread may need to wait on the - presumably stalled - I/O for necessary swap pages, and then you will experience some stalling; this is one good reason to put your swap on a separate bus from your sysroot, as ericbish notes).
| orion777 wrote: | | And one more question: if I was installing specific version of some software, will it be updated to the latest version during genup? |
The process followed by genup is described in its manpage. The important line is: | Quote: | - updates all packages in the @world set (using emerge --deep --with-bdeps=y --changed-use --update @world)
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Now, if you manually install a particular version of a package, but take no other action, Portage will record only the generic package atom in your world file (/var/lib/portage/world).
For example, at the moment, dev-util/diffstat is available in two versions in the main Gentoo tree: | Code: | pi64 ~ # eix -e diffstat
* dev-util/diffstat
Available versions: 1.60 (~)1.61
Homepage: http://invisible-island.net/diffstat/
Description: Display a histogram of diff changes |
Suppose you chose to emerge the 1.60 specifically, with: | Code: | | pi64 ~ # emerge -v =dev-util/diffstat-1.60 |
Then dev-util/diffstat-1.60 would be duly installed, but:
| Code: | pi64 ~ # grep diffstat /var/lib/portage/world
dev-util/diffstat |
No mention of the version.
So, since there is a valid (on ~arm64) newer version in the tree, it will be upgraded (along with any other packages) when you run genup. Incidentally, eix knows this (the '[U]' means eligible for upgrade): | Code: | pi64 ~ # eix -e diffstat
[U] dev-util/diffstat
Available versions: 1.60{tbz2} (~)1.61
Installed versions: 1.60{tbz2}(12:30:07 AM 04/30/2018)
Homepage: http://invisible-island.net/diffstat/
Description: Display a histogram of diff changes |
If you wanted to 'pin' diffstat-1.60 (to prevent an upgrade, which for manually installed packages may trigger a lengthy compile on your machine during genup, since there is no matching binary package on the binhost), you could e.g. create a file /etc/portage/package.mask/diffstat with the contents:
| Code: | <dev-util/diffstat-1.60
>dev-util/diffstat-1.60 |
(there are other ways to achieve this, of course). Now run eix again: | Code: | pi64 ~ # eix -e diffstat
[I] dev-util/diffstat
Available versions: 1.60{tbz2} [m](~)1.61
Installed versions: 1.60{tbz2}(12:30:07 AM 04/30/2018)
Homepage: http://invisible-island.net/diffstat/
Description: Display a histogram of diff changes |
That "[I]" indicates that Portage no longer "sees" any valid upgrade candidate (because your masks exclude 1.61, as shown by the "[m]").
Hope that makes sense!
Edit: PS you can always use the "top" command to get an idea of what is loading your system.
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sakaki
Last edited by Sakaki on Mon Apr 30, 2018 12:26 am; edited 1 time in total |
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Sakaki
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| Posted: Mon Apr 30, 2018 12:24 am Post subject: |
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| roylongbottom wrote: | | I have installed SAMBA in Gentoo for RPi 3B+ and would like to make use of it in testing my LanSpeed benchmark. Previously I have just edited samba.conf by copying a defined file (with possible mods). This time, there was no conf file to edit but, in vain, I tried a different one. Can anyone help.? |
Unfortunately I know very little about SAMBA, having never used it, but hopefully someone else on here can help point you in the right direction... In fact this may not even be the best sub-forum to post in for advice (since you have SAMBA installed, so the issue isn't really arm-related per se, just getting an appropriate smb.conf or whatever). Neddy?
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Sakaki
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| Posted: Mon Apr 30, 2018 8:30 am Post subject: |
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| roylongbottom wrote: | | I have installed SAMBA in Gentoo for RPi 3B+ and would like to make use of it in testing my LanSpeed benchmark. Previously I have just edited samba.conf by copying a defined file (with possible mods). This time, there was no conf file to edit but, in vain, I tried a different one. Can anyone help.? |
Just to double-check, on your benchmarks page you state that:
The linked article suggests a smb.conf file:
| Code: | #======================= Global Settings =======================
[global]
workgroup = WORKGROUP
server string = mypi server
netbios name = mypi
dns proxy = no
#### Debugging/Accounting ####
log file = /var/log/samba/log.%m
max log size = 1000
syslog = 0
panic action = /usr/share/samba/panic-action %d
####### Authentication #######
security = user
map to guest = pi
#======================= Share Definitions =======================
[homes]
comment = Home Directories
browseable = yes
guest ok = yes
read only = no
create mask = 0775
directory mask = 0775
writeable = yes
guest account = pi
[public]
path = /
guest ok = yes
guest account = ftp
browseable = yes
read only = no
create mask = 0777
directory mask = 0777
writeable = yes
admin users = everyone |
If this is the file you tried using, did you replace the references to the "pi" account in the smb.conf file with "demouser" (the image, as shipped, does not have a "pi" account pre-defined, as the Raspbian ones do)?
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54214
Location: 56N 3W
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| Posted: Mon Apr 30, 2018 9:20 am Post subject: |
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Sakaki,
Samba? Me?
I've not suffered from Windows at home since I discovered Gentoo in April 2002. :)
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NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Mon Apr 30, 2018 9:32 am Post subject: |
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| NeddySeagoon wrote: | Sakaki,
Samba? Me?
I've not suffered from Windows at home since I discovered Gentoo in April 2002.  |
I only meant maybe move roylongbottom's question to a different subforum, not that you had gone over to the dark side lol ^-^
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roylongbottom
n00b
Joined: 13 Feb 2017
Posts: 64
Location: Essex, UK
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| Posted: Mon Apr 30, 2018 11:42 am Post subject: |
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| Quote: | | If this is the file you tried using, did you replace the references to the "pi" account in the smb.conf file with "demouser" (the image, as shipped, does not have a "pi" account pre-defined, as the Raspbian ones do)? |
I tried that with "demouser" but samba failed to start after command sudo /etc/init.d/samba restart, with the following message:
| Code: | demouser@pi64 ~ $ sudo /etc/init.d/samba restart
* samba -> start: smbd ...
* start-stop-daemon: failed to start `/usr/sbin/smbd' [ !! ]
* samba -> start: nmbd ...
* start-stop-daemon: failed to start `/usr/sbin/nmbd' [ !! ]
* Error: starting services (see system logs)
* samba -> stop: smbd ...
* start-stop-daemon: no matching processes found [ ok ]
* samba -> stop: nmbd ...
* start-stop-daemon: no matching processes found [ ok ]
* ERROR: samba failed to start
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I don't completely depend on Windows, Where can I find instructions to connect to Linux Ubuntu?
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Roy |
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Mon Apr 30, 2018 11:53 am Post subject: |
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roylongbottom,
are any useful messages printed to /var/log/samba.log* or /var/log/messages when you try starting the SAMBA service? (try "sudo tail <logname>" to see; you could also try "sudo dmesg | tail"). There is probably something simple at issue in the configuration file.
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Mon Apr 30, 2018 7:50 pm Post subject: |
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roylongbottom,
I've managed to get samba to start at least on an RPi3 B+, with some changes to the /etc/samba/smb.conf file. I have no idea whether it'll allow you to see the directories etc., but netstat shows it is listening on the relevant ports and there are no errors reported.
Here's what I did: | Code: | pi64 ~ # emerge -v net-fs/samba
pi64 ~ # nano -w /etc/samba/smb.conf |
and put in that file: | Code: | #======================= Global Settings =======================
[global]
workgroup = WORKGROUP
server string = mypi server
netbios name = mypi
dns proxy = no
passdb backend = smbpasswd
wins support = yes
guest account = demouser
#### Debugging/Accounting ####
log file = /var/log/samba/log.%m
max log size = 1000
panic action = /usr/share/samba/panic-action %d
####### Authentication #######
security = user
#======================= Share Definitions =======================
[homes]
comment = Home Directories
browseable = yes
guest ok = yes
read only = no
create mask = 0775
directory mask = 0775
writeable = yes
[public]
path = /
guest ok = yes
browseable = yes
read only = no
create mask = 0777
directory mask = 0777
writeable = yes
admin users = everyone |
Save, and exit nano. Then:
| Code: | pi64 ~ # testparm
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[homes]"
Processing section "[public]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions
# Global parameters
[global]
dns proxy = No
guest account = demouser
log file = /var/log/samba/log.%m
max log size = 1000
netbios name = MYPI
panic action = /usr/share/samba/panic-action %d
passdb backend = smbpasswd
security = USER
server string = mypi server
wins support = Yes
idmap config * : backend = tdb
[homes]
comment = Home Directories
create mask = 0775
directory mask = 0775
guest ok = Yes
read only = No
[public]
admin users = everyone
create mask = 0777
directory mask = 0777
guest ok = Yes
path = /
read only = No |
Looks OK as far as it goes (although it may be wildly insecure, idk).
Next, per your linked tutorial article, I set up a password using what now appears to be a deprecated method, but it still works, so: | Code: | pi64 ~ # smbpasswd -a demouser
<enter raspberrypi64 when prompted> |
Run it: | Code: | pi64 ~ # rc-service samba start
* samba -> start: smbd ... [ ok ]
* samba -> start: nmbd ... [ ok ]
pi64 ~ # rc-service samba status
* status: started |
yay!
Ports 139 and 445 are live: | Code: | pi64 ~ # netstat -tl4n | grep "\(139\|445\)"
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN
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I have no idea whether this will actually serve anything, but at least it is a step nearer ^-^
Please let me know if it works your end.
_________________
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sakaki |
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roylongbottom
n00b
Joined: 13 Feb 2017
Posts: 64
Location: Essex, UK
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| Posted: Mon Apr 30, 2018 10:37 pm Post subject: |
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Sakaki
Thanks for that, but I was just going to tell you that I had managed to start samba, after noticing that my smb.conf for Raspbian had Authentication “map to guest = ?????” commented out. I could not access the Rpi from Windows but could mount Windows folders on the RPi to run my LAN benchmark, well not exactly run. It wrote and read three 8 MB files, at the same speed as the 32 bit benchmark, then crashed trying to write a second 16 MB file.
I tried all your suggested commands and results were the same as yours. Then I set the password (why didn’t I read my recommended file?). Then I could access RPi files from Windows. There I have a LAN.exe Windows benchmark. When clicked, it runs on the PC, transferring data to/from the RPi. This ran to completion, but at an extremely slow speed.
Then, The RPi would not power off (until I pulled the plug). I wonder if it was still trying to transfer data to the PC. I will see what happens tomorrow.
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Roy |
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Mon Apr 30, 2018 11:21 pm Post subject: |
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roylongbottom,
no idea what may be causing the samba issues, probably something I've misconfigured in the smb.conf file ><
However, if you have access to an Ubuntu machine on the same subnet, why not try iperf on both of them?
It is available on the RPi3 (sudo emerge net-misc/iperf) and on ubuntu (sudo apt-get install iperf).
Run it as "iperf3 -s" on your RPi3, and "iperf -c <IP address of RPi3>" from your Ubuntu box.
Will give you basic network throughput stats.
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sakaki |
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Tue May 01, 2018 5:00 pm Post subject: |
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roylongbottom,
FWIW, I tried transferring some large files to and from a Win10 box today over samba from an RPi3B+, using a folder exported from the Pi. It seemed to work fine (albeit I was using WiFi, not Ethernet).
As to your question: | roylongbottom wrote: | | I don't completely depend on Windows, Where can I find instructions to connect to Linux Ubuntu? |
please see my short NFS 'howto' below.
Sharing Folders between an RPi3 (B or B+) and a Ubuntu Box, Using NFS
Since you have an Ubuntu system, you could use NFS to share folders from the RPi3. Here's a simple (i.e. not very secure!) setup to achieve this (for more detailed setup instructions, see e.g. this article).
OK, on your RPI3 (B or B+), first install the NFS userspace components (prefix all commands with sudo if not working as root): | Code: | | pi64 ~ # emerge -av net-fs/nfs-utils |
Wait for that to complete (all required packages are on the binhost, so it shouldn't take long). Then, export your whole RPi3 root filing system (I told you this was going to be insecure ^-^): issue:
| Code: | | pi64 ~ # mousepad /etc/exports |
and edit that file so it reads:
| Code: | # /etc/exports: NFS file systems being exported. See exports(5).
/ *(rw,sync,no_subtree_check) |
Save, and exit mousepad. Take a note of your RPi3's Ethernet IP address: | Code: | pi64 ~ # ifconfig eth0 | grep 'inet '
inet 192.168.1.100 netmask 255.255.255.0 broadcast 192.168.1.255 |
(the address is 192.168.1.100 here, but yours will probably differ).
Then start the NFS server:
| Code: | pi64 ~ # rc-service nfs start
* Mounting nfsd filesystem in /proc ... [ ok ]
* Exporting NFS directories ... [ ok ]
* Starting NFS mountd ... [ ok ]
* Starting NFS daemon ... [ ok ]
* Starting NFS smnotify ... [ ok ] |
Now, on your Ubuntu machine install the NFS client utils: | Code: | user@ubuntu~:$ sudo apt-get update
user@ubuntu~:$ sudo apt-get install nfs-client |
Create a mountpoint, and mount the NFS share: | Code: | user@ubuntu~:$ sudo mkdir -pv /mnt/piroot
user@ubuntu~:$ sudo mount -v 192.168.1.100:/ /mnt/piroot |
Obviously, substitute 192.168.1.100 in the above with the IP address of your RPi3 as returned by ifconfig, earlier.
That's it! You should now be able to copy files from the Pi to your Ubuntu system, and vice versa (you need appropriate access permissions of course, but e.g. the Pi's /tmp directory, which will now be visible at /mnt/piroot/tmp on Ubuntu, should allow full read/write access).
When done, just: | Code: | | user@ubuntu~:$ sudo umount -v /mnt/piroot |
to disconnect.
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sakaki |
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roylongbottom
n00b
Joined: 13 Feb 2017
Posts: 64
Location: Essex, UK
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| Posted: Fri May 04, 2018 11:52 am Post subject: |
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Deleted details as accidently posted twice
_________________
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Roy
Last edited by roylongbottom on Fri May 04, 2018 12:00 pm; edited 1 time in total |
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roylongbottom
n00b
Joined: 13 Feb 2017
Posts: 64
Location: Essex, UK
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| Posted: Fri May 04, 2018 11:57 am Post subject: |
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Sakaki
LAN Speed Benchmarks
At last, I have run my 64 bit LAN speed benchmark on the Raspberry Pi 3B+ with Gentoo. I was distracted by problems with SAMBA and my own stupid network, that often fails to recognise other computers. The first SAMBA issues are that it does not start automatically on booting and fails to identify connected PCs (all the time, unlike other computers).
Then I realised that SAMBA is not needed to run the benchmarks on the Pi. This is achieved by using a mount command such as “sudo mount -t cifs -o password=raspberrypi64 -o dir_mode=0777,file_mode=0777 //192.168.1.68/d /media/public” and running with “./LanSpeed64 FilePath /media/public/ray”. Details and benchmark downloads can be found by downloading the pdf document from:
https://www.researchgate.net/publication/319433633_Raspberry_Pi_32_Bit_and_64_Bit_Benchmarks_and_Stress_Tests?_iepl%5BviewId%5D=w3FaXcjGmjpJ52MUwtB7jYqY&_iepl%5Bcontexts%5D%5B0%5D=projectUpdatesLog&_iepl%5BtargetEntityId%5D=PB%3A319433633&_iepl%5BinteractionType%5D=publicationTitle
LanSpeed writes and reads three files at two sizes (defaults 8 and 16 MB), followed by random reading and writing of 1KB blocks out of 4. 8 and 16 MB and finally, writing and reading 200 small files, sized 4, 8 and 16 KB.
Below is an example of the log file produced for the 32 bit Raspbian version running on the older Pi 3B, then the performance results for same version running on a Pi 3B+, both using the same Windows 7 based PC. Speeds of the latter are typically three times faster on writing large files and more than twice as fast reading (but note variations). Again using the same remote PC, speeds are shown from a run using the 64 bit version via Gentoo, with similar performance (numerous runs would be required to accurately compare all the results). Finally, using the same setup are results ion using larger files (example command for the second one “./LanSpeed64 MB 1024 FilePath /media/public/ray”
| Code: | Raspbian 32 bit LanSpeed Raspberry Pi 3B
LanSpeed RasPi 1.0 Wed Apr 4 12:29:52 2018
Selected File Path:
/media/public/ray/
Total MB 266240, Free MB 90555, Used MB 175685 - PC Windows 7
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 11.09 11.19 11.27 11.67 11.63 11.65
16 11.30 11.42 11.23 11.68 11.65 11.69
Random Read Write
From MB 4 8 16 4 8 16
msecs 0.732 1.341 0.908 1.60 0.92 0.95
200 Files Write Read Delete
File KB 4 8 16 4 8 16 secs
MB/sec 0.82 1.50 2.37 1.38 1.59 2.88
ms/file 5.01 5.47 6.91 2.97 5.14 5.69 0.764
End of test Wed Apr 4 12:31:00 2018
======================================================================
Raspbian 32 bit Raspberry Pi 3B+ to Windows 7 PC
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 32.59 35.27 35.57 8.07 25.79 25.57
16 35.64 34.43 35.79 22.76 25.60 25.76
Random Read Write
From MB 4 8 16 4 8 16
msecs 0.453 1.277 1.150 1.32 0.70 0.68
200 Files Write Read Delete
File KB 4 8 16 4 8 16 secs
MB/sec 1.14 2.03 3.82 1.77 3.06 5.28
ms/file 3.58 4.04 4.29 2.31 2.68 3.10 0.735
======================================================================
Gentoo 64 bit Raspberry Pi 3B+ to Windows 7 PC
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 28.34 34.87 35.13 13.47 27.08 26.72
16 34.16 35.21 35.05 25.85 24.75 25.23
Random Read Write
From MB 4 8 16 4 8 16
msecs 0.006 1.062 0.693 1.04 1.35 1.40
200 Files Write Read Delete
File KB 4 8 16 4 8 16 secs
MB/sec 0.87 1.96 3.15 1.67 3.49 5.90
ms/file 4.69 4.18 5.21 2.45 2.34 2.77 0.460
======================================================================
Larger Files Gentoo 64 bit Raspberry Pi 3B+ to Windows 7 PC
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
256 38.11 38.30 1.62 24.17 27.89 27.87
512 38.66 38.29 38.36 25.11 25.20 27.83
1024 38.76 38.87 38.89 27.63 26.43 26.11
2048 39.01 38.91 38.94 26.02 26.20 25.30
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I have a PC with a 3900 MHz Core i7 CPU that can dual boot to Windows 10 and Linux Ubuntu. At this time, I could not mount the Windows system, due to a security issue, but could to Ubuntu, with results accessing large files shown below. These might be interpreted as being slightly slower than data transfers to the Windows PC. The other tests had similar variations in performance.
Following are all results from the more comprehensive 64 bit Linux version, accessing the RPi 3B+ Gentoo system. Note that reading is shown as faster than writing, or data in the same direction as RPi writing.
| Code: | Gentoo 64 bit Raspberry Pi 3B+ to Linux Ubuntu
Selected File Path:
/media/public/
Total MB 446040, Free MB 369390, Used MB 76650 - PC Ubuntu
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 29.01 34.05 34.53 16.75 26.10 28.52
16 33.98 34.80 34.88 28.64 20.66 26.41
256 35.03 34.99 34.97 22.10 18.53 19.35
512 35.07 35.01 34.76 18.12 20.62 21.45
1024 34.80 34.85 35.09 20.59 20.85 19.72
2048 34.23 34.17 34.31 20.94 25.06 24.76
======================================================================
Linux LanSpeed Bechmark 64 Bit Ubuntu to Rpi 3B+ with Gentoo
Selected File Path:
/media/public/benchmarks/
Total MB 28414, Free MB 20683, Used MB 7731
Linux LAN/WiFi Speed Test 64-Bit Version 1.1, Wed May 2 16:47:41 2018
Copyright (C) Roy Longbottom 2011
8 MB File 1 2 3 4 5
Writing MB/sec 19.23 21.36 14.55 21.84 21.04
Reading MB/sec 36.43 38.98 39.08 39.26 39.17
16 MB File 1 2 3 4 5
Writing MB/sec 18.21 15.64 23.86 23.82 12.79
Reading MB/sec 38.68 39.47 39.56 39.35 39.41
32 MB File 1 2 3 4 5
Writing MB/sec 17.33 17.23 16.61 6.88 8.53
Reading MB/sec 39.26 14.83 39.67 39.63 38.03
---------------------------------------------------------------------
8 MB Cached File 1 2 3 4 5
Writing MB/sec 22.56 21.45 21.52 21.61 19.46
Reading MB/sec 36.84 38.87 39.18 38.83 39.18
---------------------------------------------------------------------
Bus Speed Block KB 64 128 256 512 1024
Reading MB/sec 21056.30 20819.11 18642.71 16841.94 16906.29
---------------------------------------------------------------------
1 KB Reads File MB > 2 4 8 16 32 64 128
Random Read msecs 0.60 0.56 0.56 0.57 0.56 0.56 0.75
---------------------------------------------------------------------
500 Files Write Read Delete
File KB MB/sec ms/File MB/sec ms/File Seconds
2 0.40 5.09 0.60 3.39 2.526
4 0.80 5.09 1.15 3.56 2.475
8 1.55 5.30 2.31 3.55 2.494
16 2.94 5.57 4.38 3.74 2.525
32 5.18 6.32 7.85 4.17 2.593
64 8.24 7.95 12.34 5.31 2.545
End of test Wed May 2 16:49:48 2018
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SAMBA Tests
Finally are results from running a Windows/Intel benchmark, stored on the RPi 3B+/Gentoo SD card. The appropriate directory has to be opened via a Windows network selection and the program run by simply clicking on the entry.
There was more variability in measured performance and particularly slow reading speeds. On occasions, running from the AMD Phenom based PC, caused the Gentoo/Raspberry Pi 3B+ system to freeze.
| Code: | Running LanSpdx86Win.exe stored ob RPi 3B+ Executed from
Intel(R) Core(TM) i7 CPU @ 3.90GHz, Windows 10
Current Drive Details
Total MB 7333, Free MB 3069, Used MB 4264
LanSpeed Windows 32-Bit Version 1.0, Thu May 03 09:22:29 2018
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 3.72 5.28 22.58 13.56 9.70 7.56
16 23.66 22.99 16.33 10.89 8.22 6.67
Random Read Write
From MB 4 8 16 4 8 16
msecs 0.566 0.536 0.472 0.498 0.455 0.441
200 Files Write Read Delete
File KB 4 8 16 4 8 16 secs
MB/sec 0.72 1.42 2.05 0.49 1.25 1.94
ms/file 5.70 5.78 7.98 8.43 6.55 8.45 1.347
End of test Thu May 03 09:23:08 2018
======================================================================
From AMD Phenom(tm) II X4 945 @ 3000 MHz, Windows 7
MBytes/Second
MB Write1 Write2 Write3 Read1 Read2 Read3
8 8.58 24.64 25.25 15.10 10.78 8.35
16 16.45 22.74 6.12 5.26 4.61 4.09
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Earlier Suggestions
I installed and tried executing iperf but nothing happened. I confirmed data transmission speeds via Windows and Linux performance monitors.
Thanks for you advice on sharing folders. I might try it later, if needed. For the time being, I can copy files to/from the directory mounted as above.
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Roy |
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steveL
Watchman
Joined: 13 Sep 2006
Posts: 5153
Location: The Peanut Gallery
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| Posted: Fri May 04, 2018 3:57 pm Post subject: |
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Sakaki: this is the best thread I have seen in a very long time.
Thank you so much, and to Roy Longbottom, as well as Neddy (as always :) for all the hard work, and especially the exemplary documentation (using the forums as Jah intended.) |
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orion777
Apprentice
Joined: 15 Mar 2017
Posts: 207
Location: Riga, Latvia
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| Posted: Fri May 04, 2018 7:15 pm Post subject: |
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| Quote: | | Translating this somewhat liberally, a load of 14.1 (the first number in your load average list) on a 4 core processor means that over the last minute (in an exponentially averaged sense) there were 14.1/4 = 3.5 runnable or I/O blocked threads per core. |
I was migrating to the bigger, but seems that slower SD card. During this load only emegre and xserver was running, so the swap file was used.. so maybe swap access was too slow.
Now I use image which was downloaded 2 weeks ago. Now I have to build my own kernel
| Code: | cd /usr/src
git clone --depth 1 https://github.com/raspberrypi/linux.git -b rpi-4.14.y
cd linux
make distclean
make bcmrpi3_defconfig
make menuconfig
> CPU Power Management > CPU Frequency scaling --- Default CPUFreq governor (powersave) ---> Ondemand
make –j5 |
but I get a loooot of such errors:
| Code: | net/sunrpc/xdr.o:(__mcount_loc+0x148): dangerous relocation: unsupported relocation
net/sunrpc/cache.o:(.data+0x50): dangerous relocation: unsupported relocation
lib/radix-tree.o:(___ksymtab+radix_tree_tag_clear+0x0): dangerous relocation: unsupported relocation
.....
lib/win_minmax.o:(___ksymtab+minmax_running_max+0x8): dangerous relocation: unsupported relocation
drivers/firmware/efi/libstub/lib-sort.stub.o: In function `__efistub_$d':
__efistub_sort.c:(.init___ksymtab+sort+0x0): dangerous relocation: unsupported relocation
__efistub_sort.c:(.init___ksymtab+sort+0x8): dangerous relocation: unsupported relocation
ld: warning: creating a DT_TEXTREL in a shared object.
make: *** [Makefile:1021: vmlinux] Error 1
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But I have to build my own kernel to implement MPTCP )) |
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Sakaki
Guru
Joined: 21 May 2014
Posts: 409
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| Posted: Fri May 04, 2018 9:40 pm Post subject: |
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| steveL wrote: | Sakaki: this is the best thread I have seen in a very long time.
Thank you so much, and to Roy Longbottom, as well as Neddy (as always for all the hard work, and especially the exemplary documentation (using the forums as Jah intended.) |
steveL - on behalf of the contributors on this thread, thanks for your kind words - much appreciated ^-^
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sakaki |
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Gentoo on ARM
