Date: Thu, 20 Nov 1997 19:37:22 -0800 (PST) From: Tom <tom@sdf.com> To: Chris Timmons <skynyrd@opus.cts.cwu.edu> Cc: "John S. Dyson" <toor@dyson.iquest.net>, Jaye Mathisen <mrcpu@cdsnet.net>, hackers@freebsd.org Subject: Re: Serious performance issue with 2.2.5-RELEASE Message-ID: <Pine.BSF.3.95q.971120193600.1224B-100000@misery.sdf.com> In-Reply-To: <Pine.BSF.3.96.971120181005.19403B-100000@opus.cts.cwu.edu>
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On Thu, 20 Nov 1997, Chris Timmons wrote: > > On around November 3, there was a thread here in -hackers of subject > "FreeBSD shines" that mentioned a semaphore benchmarking program: > > "If anyone wants the code (and results for other OSes) see > ftp://samba.anu.edu.au/pub/tridge/semspeed.c" > > Subsequent discussion pointed out that 2.2 was quite a bit faster than > 2.2.5. Maybe a look at semspeed.c will provide some suggestions about > where to look. I recall this comparison was only for semaphore operations, which no part of FreeBSD uses (only some apps use it), and the comparison was made between 2.2 and current, and current was found to be quite slow. Tom
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