Date: Thu, 23 May 2002 21:01:41 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: Alan Cox <alc@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, <cvs-all@FreeBSD.org> Subject: Re: cvs commit: src/sys/vm vm_map.c vm_map.h Message-ID: <20020523205929.R18281-100000@patrocles.silby.com> In-Reply-To: <200205240133.g4O1XP047545@freefall.freebsd.org>
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On Thu, 23 May 2002, Alan Cox wrote: > alc 2002/05/23 18:33:25 PDT > > Modified files: > sys/vm vm_map.c vm_map.h > Log: > with a large number of entries. For example, the execution time > for replaying an access log from www.cs.rice.edu against the thttpd > web server was reduced by 23.5% due to the large number of files > simultaneously mmap()ed by this server. (The machine in question has > enough memory to cache most of this workload.) Wow! Have you done any benchmarks with other apps? > Nothing comes for free: At present, I see a 0.2% slowdown on "buildworld" > due to the overhead of maintaining the splay tree. I believe that > some or all of this can be eliminated through optimizations > to the code. I think a 0.2% slowdown is quite acceptable, given the speedups shown under load. Keep up the good work! Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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