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. --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 > > -- 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
