cvs commit: src/usr.sbin/syslogd syslogd.c

[Simon L. Nielsen]

On 2004.07.04 19:13:58 +0000, Colin Percival wrote:
> cperciva    2004-07-04 19:13:58 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     usr.sbin/syslogd     syslogd.c 
>   Log:
>   Where syslogd would have fsync()ed a file in the past, instead set a flag
>   FFLAG_NEEDSYNC and fsync the file when select() next returns zero.  This
>   dramatically speeds up the process of logging large amounts of data, while
>   leaving the essential semantics (that data can be expected to be on disk
>   if we crash) unchanged.
>   
>   In my tests, this speeds up the rc phase of booting by 18-20%. [1]

Cool! :-).

-- 
Simon L. Nielsen
FreeBSD Documentation Team
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