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fbeth
n00b
Joined: 28 Feb 2023
Posts: 8
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 Posted: Thu Dec 07, 2023 9:07 am Post subject: COmpile NetworkManager with -O3 |
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Hi,
I wanted to know if it would benefit the NetworkManager service startup time if I compiled it with the -O3 flag, does someone have data or benchmark about this ? Anyone tried it ? Do I need to make my own benchmarks ?
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CaptainBlood
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Joined: 24 Jan 2010
Posts: 3628
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| Posted: Thu Dec 07, 2023 11:03 am Post subject: |
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I don't think networkmanager startup time will benefit -O3.
There would be ms not sensible fraction of a second.
Thks 4 ur attention, interest & support
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Last edited by CaptainBlood on Thu Dec 07, 2023 1:34 pm; edited 1 time in total |
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Goverp
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Joined: 07 Mar 2007
Posts: 2009
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| Posted: Thu Dec 07, 2023 11:20 am Post subject: Re: COmpile NetworkManager with -O3 |
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| fbeth wrote: | | I wanted to know if it would benefit the NetworkManager service startup time if I compiled it with the -O3 flag ... |
Do you have a problem with the time it takes to start? That's much more likely to be network issues than anything software. Unless you're running on something ancient like an 8086, all the stuff NetworkManager itself does should be over in negligible time.
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fbeth
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Joined: 28 Feb 2023
Posts: 8
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| Posted: Fri Dec 08, 2023 2:50 pm Post subject: Re: COmpile NetworkManager with -O3 |
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| Goverp wrote: | | Do you have a problem with the time it takes to start? That's much more likely to be network issues than anything software. Unless you're running on something ancient like an 8086, all the stuff NetworkManager itself does should be over in negligible time. |
I wouldn't really notice the difference, I'm just curious on how low I get to start my computer. |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54254
Location: 56N 3W
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| Posted: Fri Dec 08, 2023 4:51 pm Post subject: |
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fbeth,
Load time is related to code size.
-O3 makes code bigger to try to get it to execute faster.
For small code (to load fastest) use -Os, that's optimise for size.
The kernel has that option too.
Fastest is to not use network manager, then it won't be loaded at all. :)
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