On 09.01.2014 18:18, Adrian Chadd wrote:
Depends if you're thinking locally or globally.
Locally - for nfs? not a big deal.
Globally - NFS, ZFS, GELI, geom/cam, NIC, etc.. suddenly your machine
could default to having a couple thousand worker threads just for a
HBA and a 10GE NIC. That's a little nuts.
So, what is your point? Each NFS thread (unlike GEOM or CAM) executes
only _one_ request at a time. Would you like your 128-core/many-spindle
system executed only 4 synchronous requests at a time?
On 9 January 2014 08:00, Alexander Motin <m...@freebsd.org> wrote:
On 09.01.2014 17:57, Adrian Chadd wrote:
.. so with say, 128 core boxes showing up, is this really a good default?
And what is the price? 16K+ of KVA per thread for thread stack, etc? 4
threads is probably much worse default there. May be nfsd's default could be
tuned, but obviously it should not be hardcoded value.
On 9 January 2014 07:55, Alexander Motin <m...@freebsd.org> wrote:
Author: mav
Date: Thu Jan 9 15:55:55 2014
New Revision: 260486
URL: http://svnweb.freebsd.org/changeset/base/260486
Log:
Remove very low default limit of 4 nfsd threads. nfsd's own default
is
8 * hw.ncpu, that sounds more appropriate for these SMP/NCQ/... days.
Modified:
head/etc/defaults/rc.conf
Modified: head/etc/defaults/rc.conf
==============================================================================
--- head/etc/defaults/rc.conf Thu Jan 9 15:38:28 2014 (r260485)
+++ head/etc/defaults/rc.conf Thu Jan 9 15:55:55 2014 (r260486)
@@ -311,7 +311,7 @@ nfs_client_enable="NO" # This host is a
nfs_access_cache="60" # Client cache timeout in seconds
nfs_server_enable="NO" # This host is an NFS server (or NO).
oldnfs_server_enable="NO" # Run the old NFS server (YES/NO).
-nfs_server_flags="-u -t -n 4" # Flags to nfsd (if enabled).
+nfs_server_flags="-u -t" # Flags to nfsd (if enabled).
mountd_enable="NO" # Run mountd (or NO).
mountd_flags="-r" # Flags to mountd (if NFS server
enabled).
weak_mountd_authentication="NO" # Allow non-root mount requests
to be served.
--
Alexander Motin
--
Alexander Motin
_______________________________________________
svn-src-head@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
