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Subject: Re: delay when querying /proc/loadavg
From: Vince Rice <vrice AT solidrocksystems DOT com>
In-Reply-To: <5588344D.6060901@googlemail.com>
Date: Mon, 22 Jun 2015 11:22:13 -0500
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On Jun 22, 2015, at 11:14 AM, m0viefreak <m0viefreak DOT cm AT googlemail DOT com> wrote:
> 
> 
> Hello,
> 
> I noticed that there is long delay when getting the content of /proc/ladavg:
> 
> $ time cat /proc/loadavg
> 0.00 0.00 0.00 1/16
> cat /proc/loadavg  0.01s user 1.47s system 100% cpu 1.480 total
> 
> I am aware that loadavg is not meaningful on cygwin and always returns
> "0 0 0", but it is used in many programs and scripts. For example I
> noticed it with my .bashrc/.zshrc that I copied from another (native
> linux) system.
> 
> This slowdown also seems to affect programs like 'top' which takes a
> long time to start and behaves very sluggish when navigating due to
> updating those values.
> 
> Is there a reason it takes that long to react? On every other system
> getting the value is instant.

WFM.

$ uname -a
CYGWIN_NT-6.1 SRSMBPROWIN 2.0.4(0.287/5/3) 2015-06-09 12:20 i686 Cygwin
$ time cat /proc/loadavg
0.00 0.00 0.00 1/3

real    0m0.031s
user    0m0.015s
sys     0m0.000s


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