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Performance issue- lots of hard drive activity
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dspahn
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Joined: 22 Jun 2006
Posts: 360

PostPosted: Mon Nov 05, 2018 12:38 am    Post subject: Performance issue- lots of hard drive activity Reply with quote

Seems lie I have a high load, showing itself as a crippling surge of hard drive activity. I'm running amd64 stable, with KDE, and I have noticed this phenomenon when I run Thunderbird ad when I run the nVidia X settings utility. Everything has been built in the past two weeks from an emerge --sync no older than that I am booting uefi (Plymouth isnt working yet) and running systemd. I was using the systemd network manager previously and switched to NetworkManager, but this problem was there before that.

emerge --info:
https://paste.pound-python.org/show/7MINxQRsw6trqRx7cOE2/

uname -a:
Linux USMDITLT007 4.14.65-gentoo #8 SMP Sat Oct 27 09:16:15 EDT 2018 x86_64 Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz GenuineIntel GNU/Linux

Everything works great, except some of these other programs. Running top doesn't tell me anything, because the system cannot do anything while it is happening- the mouse doesn't even move! It seems to do this for 20-30 minutes. I'm wondering if it is an indexing service or something. Like I mentioned, I can trigger the symptom by running Thunderbird, but I am trying to figure out what is causing the issue. Everything runs smoothly and fast when I am not having this problem- desktop effects, I can run Xonotic, surf the web, emerge applications.... Any ideas how to diagnose this?

my crontab shows this:
https://paste.pound-python.org/show/KyYxxol49jdgwkAlaDN9/

but I don't see anything that actually tells me anything.

Here is my systemctl status:
https://paste.pound-python.org/show/pYS0VQkpnOgai4GB704z/

Here is lspci -k:
https://paste.pound-python.org/show/J2ZMnFWQih2RqBBad70b/

and my dmesg:
https://paste.pound-python.org/show/vAnvf0Y4OdX9g0TavG8x/


Let me know if any other commands might be helpful.
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AJM
Tux's lil' helper
Tux's lil' helper


Joined: 25 Sep 2002
Posts: 98
Location: Aberdeen, Scotland

PostPosted: Tue Nov 06, 2018 11:40 pm    Post subject: Re: Performance issue- lots of hard drive activity Reply with quote

dspahn wrote:
I'm wondering if it is an indexing service or something...


Given the last couple of lines from your dmesg, it certainly looks like it. How about disabling Baloo and seeing if the problem still occurs?

( I freely admit I had to search to find what Baloo actually is, funnily enough I abandoned KDE after 3.x mostly because of the "semantic desktop" rubbish they started to enforce everywhere, and the crippling performance problems it caused.)
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mike155
l33t
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Joined: 17 Sep 2010
Posts: 997
Location: Frankfurt, Germany

PostPosted: Wed Nov 07, 2018 11:28 pm    Post subject: Reply with quote

dspahn wrote:
Any ideas how to diagnose this?

1) You could install 'iotop' and run 'iotop -d 5' in a terminal window. iotop will show you which processes generate disk I/O. Start iotop before you start suspicious programs like Thunderbird...

2) If you start Thunderbird the first time, it will build a global index, which will be used to answer global search requests. This will take a while if you have zillions of e-mails...

3) In order to avoid Baloo, I added '-semantic-desktop' to the global USE flags defined in /etc/portage/make.conf.

AJM wrote:
( I freely admit I had to search to find what Baloo actually is, funnily enough I abandoned KDE after 3.x mostly because of the "semantic desktop" rubbish they started to enforce everywhere, and the crippling performance problems it caused.)

I also loved KDE 3.x and I also was expelled from KDE by KDE 4. But 3 months ago, I returned to KDE. KDE works perfectly fine nowadays - at least if you disable semantic-desktop and if XDG_CACHE_HOME points to a directory on a tmpfs volume.
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