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| author | Bram Bonné <brambonne@google.com> | 2020-05-06 13:49:55 +0200 |
|---|---|---|
| committer | Bram Bonné <brambonne@google.com> | 2020-05-18 11:20:30 +0200 |
| commit | acadd09c66e1e5966ac771cb338f1ad660aed4c0 (patch) | |
| tree | bc11de4fe811b802c698f972cb1eb16ac09ddd0c /libc/malloc_debug/tests/malloc_debug_system_tests.cpp | |
| parent | 57a1c3908ff5a2e427f5d45992d0b463fd71b87a (diff) | |
Speed up seccomp with priority list.
Allow to provide a list of prioritized syscalls (e.g., syscalls that we
know occur often) which are checked before other syscalls in seccomp.
When constructing the bpf seccomp filter, traverse prioritized syscalls
in a linear list before checking all other syscalls in a binary tree.
Bug: 156732794
Test: make, inspect generated *_system_policy.cpp files
Test: simpleperf on futex/ioctl-heavy app seems to show 5-10% less time
spent in seccomp call
Change-Id: I509343bcd32ada90c0591785ab5cb12d2a38c31e
(cherry picked from commit ce84677733c18bc442f7f1b2f1840117c904db70)
Diffstat (limited to 'libc/malloc_debug/tests/malloc_debug_system_tests.cpp')
0 files changed, 0 insertions, 0 deletions