On Thu, Apr 23, 2009 at 7:41 PM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote: > On Thu, Apr 23, 2009 at 12:42:39PM -0400, andros@xxxxxxxxxx wrote: >> This is a rewrite of the NFSv4.1 DRC, switching from a page based cache to >> a buffer based cache. The logic for the single slot clientid cache has been >> separated from the session slot logic to handle the CREATE_SESSION call >> preceeded by a SEQUENCE and all the replay combinations therein. >> >> The session DRC now caches encoded operations with the exception of the >> SEQUENCE operation which for a replay is encoded with the current slot and >> session values. A review of message sizes indicates that a 1024 byte buffer >> for the operations is more than adequate. > > Thanks, a quick skim suggests the basic idea's right.... I may not get > around to looking at this closer soon; let me know if there's a new > version at some point. OK - Thanks for your time. -->Andy > > --b. > >> >> Not addressed is the necessary pre-operation processing estimate of the encoded >> per operation result to check against the negotiated fore channel maximum >> response size cached. >> >> I've tested NFSv4.1 mounts using Connectathon and the new pynfs 4.1 tests, >> where I added two new Clientid cache replay tests [to be submitted]to >> st_create_session.py. >> >> I've tested NFSv4.0 mounts using Connectathon and the pynfs v4.0 tests. >> >> As always, comments and suggestions welcome. >> >> -->Andy >> >> Clientid single slot cache >> 0001-nfsd41-add-create-session-slot-buffer-to-struc-nfs4.patch >> 0002-nfsd41-encode-create_session-result-into-cache.patch >> 0003-nfsd41-create_session-check-replay-first.patch >> 0004-nfsd41-replay-solo-and-embedded-create-session.patch >> 0005-nfsd41-create_session-cache-hold-client-reference.patch >> 0006-nfsd41-no-nfsd4_release_respages-for-the-clientid-c.patch >> 0007-nfsd41-slots-are-freed-with-session.patch >> >> Session slot cache >> 0008-nfsd41-protect-sv_drc_pages_used-with-spinlock.patch >> 0009-nfsd41-sanity-check-client-drc-maxreqs.patch >> 0010-nfsd41-change-from-page-to-memory-based-drc-limits.patch >> 0011-nfsd41-set-the-session-maximum-response-size-cached.patch >> 0012-nfsd41-allocate-and-use-drc-cache-buffers.patch >> 0013-nfsd41-free-drc-cache-buffers.patch >> 0014-nfsd41-obliterate-nfsd4_copy_pages.patch >> 0015-nfsd41-obliterate-nfsd41_copy_replay_data.patch >> 0016-nfsd41-obliterate-nfsd4_release_respages.patch >> 0017-nfsd41-remove-unused-nfsd4_cache_entry-fields.patch >> 0018-nfsd41-obliterate-nfsd4_set_statp.patch >> 0019-nfsd41-rename-nfsd4_enc_uncached_replay.patch >> 0020-nfsd41-encode-replay-sequence-from-the-slot-values.patch >> 0021-nfsd41-remove-iovlen-field-from-nfsd4_compound_stat.patch >> 0022-nfsd41-obliterate-nfsd41_copy_replay_data.patch >> 0023-nfsd41-fix-nfsd4_store_cache_entry-comments.patch >> 0024-nfsd41-support-16-slots-per-session.patch >> 0025-nfsd41-use-the-maximum-operations-per-compound-in-n.patch >> 0026-nfsd41-fix-nfsd4_store_cache_entry-dprintk.patch >> 0027-nfsd41-add-test-for-failed-sequence-operation.patch >> 0028-nfsd41-remove-redundant-failed-sequence-check.patch >> 0029-nfsd41-remove-check-for-session.patch >> >> > _______________________________________________ > pNFS mailing list > pNFS@xxxxxxxxxxxxx > http://linux-nfs.org/cgi-bin/mailman/listinfo/pnfs > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
