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Re: Time resolution in Emacs


From: Paul Eggert
Subject: Re: Time resolution in Emacs
Date: Mon, 25 Apr 2022 12:27:41 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0

On 4/25/22 09:54, Max Nikulin wrote:

on Linux while file metadata are in cache, timestamps may have high time resolution. When later fetched from disk they may have coarse resolution, e.g. whole seconds.
Yes, that is a known bug in older Linux kernels. As I understand it, the 
bug was fixed many years ago. (It broke GCC builds circa 2004[1] so 
there was a good deal of motivation to fix it.) I expect this problem is 
no longer relevant; if I'm wrong, Eli's suggestion would help to work 
around it.
[1]: 
https://linux.kernel.narkive.com/XLtQbTzQ/linux-2-6-nanosecond-time-stamp-weirdness-breaks-gcc-build


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