Pawel Jakub Dawidek 1698a6aec9 Dramatically optimize listing snapshots when user requests only snapshot ... names and wants to sort them by name, ie. when executes: # zfs list -t snapshot -o name -s name Because only name is needed we don't have to read all snapshot properties. Below you can find how long does it take to list 34509 snapshots from a single disk pool before and after this change with cold and warm cache: before: # time zfs list -t snapshot -o name -s name > /dev/null cold cache: 525s warm cache: 218s after: # time zfs list -t snapshot -o name -s name > /dev/null cold cache: 1.7s warm cache: 1.1s MFC after: 1 week		2012-01-21 21:12:53 +00:00
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ctf	This commit was generated by cvs2svn to compensate for changes in r179193,	2008-05-22 07:04:10 +00:00
dtrace	Revert the approach for skipping lockstat_probe_func call when doing	2011-12-12 23:29:32 +00:00
fs	Dramatically optimize listing snapshots when user requests only snapshot	2012-01-21 21:12:53 +00:00
os	Finally... Import the latest open-source ZFS version - (SPA) 28.	2011-02-27 19:41:40 +00:00
sys	Merge new ZFS features from illumos:	2011-11-28 21:40:00 +00:00
zmod	- rename atomic.S and crc32.c to avoid collisions when linking zfs in to the kernel	2009-05-09 01:45:55 +00:00
Makefile.files	Finally... Import the latest open-source ZFS version - (SPA) 28.	2011-02-27 19:41:40 +00:00