Author: kib Date: Thu Oct 5 11:36:55 2017 New Revision: 324302 URL: https://svnweb.freebsd.org/changeset/base/324302
Log: Reduce default max_ldt_segment value to 512. This makes the LDT to use only one page with default settings, avoiding the need to find contigous 2 pages in KVA. It seems that most users are fine even with 512 segments. Discussed with: bde Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/amd64/amd64/sys_machdep.c Modified: head/sys/amd64/amd64/sys_machdep.c ============================================================================== --- head/sys/amd64/amd64/sys_machdep.c Thu Oct 5 11:34:51 2017 (r324301) +++ head/sys/amd64/amd64/sys_machdep.c Thu Oct 5 11:36:55 2017 (r324302) @@ -64,7 +64,7 @@ __FBSDID("$FreeBSD$"); #define MAX_LD 8192 -int max_ldt_segment = 1024; +int max_ldt_segment = 512; SYSCTL_INT(_machdep, OID_AUTO, max_ldt_segment, CTLFLAG_RDTUN, &max_ldt_segment, 0, "Maximum number of allowed LDT segments in the single address space"); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"