On Thu, Aug 27, 2009 at 12:07:39PM -0400, andros@xxxxxxxxxx wrote: > > NFSv4.1 DRC Rewrite Version 6 > > These patches apply against git://linux-nfs.org/~bfields/linux: for-2.6.32 > branch and continue to rewrite the NFSv4.1 Sessions DRC. Besides some > bug fixes: Thanks for following up on this. It looks fine except for a few nits noted on replies to individual patches. Could you fix those up and resend? And then I think #7 should be it.... --b. > > 1) The bound on the fore channel per-session DRC size are rewritten. > Instead of just using a maximum number of slots to bound the size, > The server gives the client the number of ca_maxresponsesize_cached slots it > requests bounded by NFSD_SLOT_CACHE_SIZE, NFSD_MAX_MEM_PER_SESSION and by > nfsd_drc_max_mem. Do not allow more than NFSD_MAX_SLOTS_PER_SESSION. > > This allows clients to tailor a session to usage. > For example, an I/O session (READ/WRITE/COMMIT only) can have a much smaller > ca_maxresponsesize_cached (for only WRITE/COMMIt compound responses) and a lot > larger ca_maxresponses to service a large in-flight data window. > > 2) the page-based DRC is replaced with a buffer based DRC with each > slot table entry (struct nfsd4_slot + cache) allocated separately. > This allocation prepares us for slot size re-negotiation via the SEQUENCE > operation target and high slot id arguments. > > Testing: > > NFSv4.1 mount: pynfs tests - including the SEQUENCE replay cache tests. > connectathon tests. > > NFSv4.0 mount: connectathon tests. > > -->Andy > > 0001-nfsd41-expand-solo-sequence-check.patch > 0002-nfsd41-bound-forechannel-drc-size-by-memory-usage.patch > 0003-nfsd41-use-session-maxreqs-for-sequence-target-and.patch > 0004-nfsd41-replace-nfserr_resource-in-pure-nfs41-respon.patch > 0005-nfsd41-replace-page-based-DRC-with-buffer-based-DRC.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
