Assign a higher I/O priority to foreground I/O compared to background
I/O to improve responsiveness of the foreground app.
The command below shows that this CL has the intended effect on a device
with kernel 5.10:
$ adb shell 'cd /dev/blkio && grep -aH . blkio.prio.class background/blkio.prio.class'
blkio.prio.class:none-to-rt
background/blkio.prio.class:restrict-to-be
From a device with an Android 6.1 kernel:
$ grep -aH . blkio.prio.class background/blkio.prio.class'
blkio.prio.class:promote-to-rt
background/blkio.prio.class:restrict-to-be
Bug: 347109476
Change-Id: I6f1ea6a89a8dfaa223e8d2a82917b4de2d7bf1cf
Signed-off-by: Bart Van Assche <bvanassche@google.com>
max_io_bytes : block will split out, so let's submit asap.
min_hot_blocks : don't mess up the logs per the chunk size.
Change-Id: I0795fea90c3aaee0ef6058fce7f4a3c31fc3fb42
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
When rq_affinity is 1, it will default to servicing the softirq on the
same CPU that has serviced the interrupt.
By setting it to 2, completions are processed by the CPU core that
submitted the I/O.
Bug: 311655524
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: I21421f97f069083793fe2e2fa51739dac12eca1d
The debugging code introduces too much performance overhead for random I/O operations.
Only enable the debugging feature on non-user builds.
Bug: 284231590
Test: boot device
Change-Id: Idf6852060dfd3a250d92147a3ee0f1fe9e6140d4
Signed-off-by: Randall Huang <huangrandall@google.com>
We need to format the /metadata partition in fastbootd mode.
This CL aims to include the necessary SELinux rules.
Bug: 264489957
Test: rom flashing
Change-Id: Ib94dbcb580c0a16395b48b8eeef6e431a637d235
Signed-off-by: Randall Huang <huangrandall@google.com>
