| commit | 4337f7226d11d68ecb964c130452e090963c68a1 | |
| author | Matthew Dillon <dillon@dragonflybsd.org> | |
| Fri, 8 Jun 2007 00:57:04 +0000 (8 00:57 +0000) | ||
| committer | Matthew Dillon <dillon@dragonflybsd.org> | |
| Fri, 8 Jun 2007 00:57:04 +0000 (8 00:57 +0000) | ||
| tree | c2740d0889103c294a17f1981acb997929497699 | treesnapshot (tar.gz zip) |
| parent | 95571d4dc337a9a09b7cf8d49b762d855a045fcf | commitdiff |
Remove the last source of SMP TLB invalidations in the critical code path
for fork/exec/exit/wait sequences. The pmap page directory is now left
cached in kernel memory until the pmap is destroyed via the objcache
dtor function for VM spaces (vmspace_dtor() -> pmap_puninit()).
This improves fork/exec performance and significantly reduces the IPI
messaging load and other cross-cpu interactions.
for fork/exec/exit/wait sequences. The pmap page directory is now left
cached in kernel memory until the pmap is destroyed via the objcache
dtor function for VM spaces (vmspace_dtor() -> pmap_puninit()).
This improves fork/exec performance and significantly reduces the IPI
messaging load and other cross-cpu interactions.
| sys/platform/pc32/i386/pmap.c | diffblobblamehistory | |
| sys/platform/pc32/include/pmap.h | diffblobblamehistory |