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| author | Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> | 2011-04-21 19:34:44 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-22 16:39:38 +0400 |
| commit | 6e2ca7d1802bf8ed9908435e34daa116662e7790 (patch) | |
| tree | 802f56f655246d21cf722e06353bd2d30011252a /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 40e19b519caeb93def89c45082d776fccfb96dbb (diff) | |
| download | linux-6e2ca7d1802bf8ed9908435e34daa116662e7790.tar.xz | |
KVM: MMU: Optimize guest page table walk
This patch optimizes the guest page table walk by using get_user()
instead of copy_from_user().
With this patch applied, paging64_walk_addr_generic() has become
about 0.5us to 1.0us faster on my Phenom II machine with NPT on.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions