android_device_xiaomi_sdm66.../rootdir
Martijn Coenen 6580fdc5be
sdm660-common: Disable dm-verity hash prefetching.
Prefetching appears to have a slightly negative effect on boot time, and
actually makes boot time much worse when the available dm-bufio cache
shrinks. Since we anticipate the dm-bufio cache will shrink (because of
an increasing number of APEX dm-verity targets), disable prefetching
completely.

Boot time w/o this change:  12.085
Boot time with this change: 11.958

Boot time w/o this change with 128kB dm-bufio cache: 22.82
Boot time with this change with 128kB dm-bufio cache: 12.007

Test: atest google/perf/boottime/boottime-test
Bug: 136247322
Change-Id: I12e342c5692fa89855d9c217f2e94287ff5642a6
2020-12-30 22:06:56 +06:00
..
bin sdm660-common: Enable block-based 2GB zRAM for EAS 2020-12-22 20:57:05 +06:00
etc sdm660-common: Disable dm-verity hash prefetching. 2020-12-30 22:06:56 +06:00
Android.mk sdm660-common: verity: call verity_update_state 2020-12-30 22:06:56 +06:00