Alan Somers ab63da3564 Speed up geom_stats_resync in the presence of many devices ... The old code had a O(n) loop, where n is the size of /dev/devstat. Multiply that by another O(n) loop in devstat_mmap for a total of O(n^2). This change adds DIOCGMEDIASIZE support to /dev/devstat so userland can quickly determine the right amount of memory to map, eliminating the O(n) loop in userland. This change decreases the time to run "gstat -bI0.001" with 16,384 md devices from 29.7s to 4.2s. Also, fix a memory leak first reported as PR 203097. Sponsored by: Axcient Reviewed by: mav, imp MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D28968		2021-03-02 18:33:45 -07:00
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geom_ctl.c
geom_getxml.c
geom_stats.c	Speed up geom_stats_resync in the presence of many devices	2021-03-02 18:33:45 -07:00
geom_util.c
geom_xml2tree.c
libgeom.3
libgeom.h
Makefile
Makefile.depend	Update Makefile.depend files	2019-12-11 17:37:53 +00:00