| commit | 8983ce704e53a37ff59235ec000eb1ebcb26e76e | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 8 Jan 2017 17:47:29 +0000 (8 09:47 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 8 Jan 2017 17:55:27 +0000 (8 09:55 -0800) | ||
| tree | d973ea80ed5dba2c01c49460d1565de9b3eb164e | treesnapshot (tar.gz zip) |
| parent | 9ef43fc3d55f24f1e544da6dafdabd6fb4c72555 | commitdiff |
kernel - Change machdep.pmap_dynamic_delete default
* Enable machdep.pmap_dynamic_delete by default only on machines with
less than 8G of ram, and disable by default on machines with 8G or more.
This feature works, but it imposes an unnecessary performance loss for
workloads which fork/exec/wait/exit a lot (bulk builds), or programs which
mmap and munmap a lot (browsers, perl, other programs).
* Enable machdep.pmap_dynamic_delete by default only on machines with
less than 8G of ram, and disable by default on machines with 8G or more.
This feature works, but it imposes an unnecessary performance loss for
workloads which fork/exec/wait/exit a lot (bulk builds), or programs which
mmap and munmap a lot (browsers, perl, other programs).
| sys/platform/pc64/x86_64/pmap.c | diffblobblamehistory |