no i dont think rx locking is the problem. the rx locking is actually pretty good. i had tracked this down with fstrace at one point but i seem to have lost the trace at the moment. i will dig around and see if i can find it.
In message <[EMAIL PROTECTED]>,Matt Benjamin writes: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA256 > >Hey, Chas, > >Sorry to bug. > >I've been looking at this, tangentially, because I've been working with >bypassing dcache/memcache, writing direct into page cache. Pretty far >along on that side of things. Is rx locking so coarse that in general >only one read makes progress even independent of the cache--to your >knowledge? > >Matt > >chas williams - CONTRACTOR wrote: >> In message <[EMAIL PROTECTED] >med >> ia.net>,"Jerry Normandin" writes: >>> write performance is actually impressive. file creation and deletion >>> are very slow on afs. >> >> because writing is easier than reading. the afs cache manager can >> group the outgoing writes together and send them in a single message. >> while the cache manager has readahead it doesnt work because the afs >> global locks blocks any progress the readahead thread might make. >> _______________________________________________ >> OpenAFS-info mailing list >> [email protected] >> https://lists.openafs.org/mailman/listinfo/openafs-info > > > > >- -- > >Matt Benjamin > >The Linux Box >206 South Fifth Ave. Suite 150 >Ann Arbor, MI 48104 > >http://linuxbox.com > >tel. 734-761-4689 >fax. 734-769-8938 >cel. 734-216-5309 > >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.4.7 (GNU/Linux) >Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > >iD8DBQFHUEJRJiSUUSaRdSURCA2lAJ4p19x8OH8y2cYO3WERwapwdZ9gYwCffFeR >t96QUFYv5yHK6wlFTbn9TSE= >=BAnD >-----END PGP SIGNATURE----- >_______________________________________________ >OpenAFS-info mailing list >[email protected] >https://lists.openafs.org/mailman/listinfo/openafs-info > _______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
