2010/2/7 Alena Manova <[email protected]>: >> ------------ Původní zpráva ------------ >> Od: Andrew Deason <[email protected]> >> Předmět: Re: [OpenAFS] Re: [OpenAFS] cache manager locked under heavy load? >> Datum: 08.2.2010 02:09:49 >> ---------------------------------------- >> On Mon, 08 Feb 2010 00:01:03 +0100 (CET) >> Alena Manova <[email protected]> wrote: >> >> > I am running one fileserver process. should I run more? how to get >> > the optimal number? >> [...] >> > Instance fs, (type is fs) currently running normally. >> > Auxiliary status is: file server running. >> > Process last started at Sun Feb 7 04:00:05 2010 (2 proc starts) >> > Command 1 is '/usr/afs/bin/fileserver' >> > Command 2 is '/usr/afs/bin/volserver' >> > Command 3 is '/usr/afs/bin/salvager' >> >> The number of threads you're running with is usually given by the -p >> option to the fileserver. You are running with the default, which I >> think is around 9. Try adding the argument "-p 128" (no quotes) to the >> parameters passed to the fileserver, and see if it affects your problem >> at all. >> > > ok, thanks. > > I changed the fileserver to be started with the option -L which means "large" > and implies -p 128. > > however it didn't help solve my cache manager issue.
nor will it. > > I also followed the vCache performance analysis described by Jason but > regardless the -stats parameter (even tried with value 1000000) I can't get > better hits/misses ratio than about 50% (which is much worse than recommended > 1%). -stats is not -stat. > how about the 'dynamic-vcaches' feature? it is enabled by default so is the > -stats parameter still relevant? > I tried to use the -fakestat-all parameter and it seems it can improve the > ratio to 4%. but the issue persists (with same scale). > > currently I am running the cache manager with -dynroot -fakestat-all -volumes > 256 -daemons 6 -stats 300000 and the fileserver with 128 LWPs. but the issue > is still there: as above. with with -stat rather than -stats _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
