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Re: Time/Speed of de/compression summary
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From: |
Antonio Diaz Diaz |
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Subject: |
Re: Time/Speed of de/compression summary |
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Date: |
Wed, 16 Mar 2022 16:51:43 +0100 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 |
Hi Adam,
Antonio Diaz Diaz wrote:
Thank you for the patch, but it introduces dependencies on things like
clock_t or CLOCKS_PER_SEC which I'm not sure how portable and problem-free
they are,
As I suspected, they are not problem-free:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/clock.html
"In programming environments where clock_t is a 32-bit integer type and
CLOCKS_PER_SEC is one million, clock() will start failing in less than 36
minutes of processor time for signed clock_t, or 72 minutes for unsigned
clock_t."
As measuring speed is not the job of lzip, I prefer to leave lzip as it is now.
Best regards,
Antonio.