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| author | Akilesh Kailash <akailash@google.com> | 2021-03-29 17:16:59 +0000 |
|---|---|---|
| committer | Akilesh Kailash <akailash@google.com> | 2021-04-30 06:31:12 +0000 |
| commit | 31e0426489badd78531e7983989c53e944c1f728 (patch) | |
| tree | 41003d6803970bcedb14a3ed50412c2547b204e8 /trusty/coverage/coverage_test.cpp | |
| parent | acc1c5d189fe9c14cfcae940a6bfb415ce1b1060 (diff) | |
libsnapshot:snapuserd: mmap + msync header after merge
mmap the CowHeader and use msync to flush only the
first 4k page after merge is complete.
This cuts down ~30 seconds of merge completion time
on a 55M incremental OTA with 235k copy operations.
Although, this isn't a significant gain but this patch
creates a scaffolding for the next set of read-ahead patches.
Bug: 183863613
Test: Incremental and Full OTA
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: I15bfec91ea1d5bdf4390670bcf406e1015b79299
Diffstat (limited to 'trusty/coverage/coverage_test.cpp')
0 files changed, 0 insertions, 0 deletions