on 2022/1/26 4:37, Shuah Khan wrote:
On 12/15/21 2:56 AM, Yang Xu wrote:
zram01 uses `free -m` to measure zram memory usage. The results are nonsense because they are polluted by all running processes on the system.
Are the results inaccurate or does /sys/block/zram<id>/mm_stat is a quick way to get the information?
The "free -m" result is inaccurate because it caculted global systemd free memory instead of process that used zram device.
We should use mm_stat as Documentation/admin-guide/blockdev/zram.rst wrote:
File /sys/block/zram<id>/mm_stat
The mm_stat file represents the device's mm statistics. It consists of a single line of text and contains the following stats separated by whitespace:
================ ============================================================= orig_data_size uncompressed size of data stored in this disk. Unit: bytes compr_data_size compressed size of data stored in this disk mem_used_total the amount of memory allocated for this disk. This includes allocator fragmentation and metadata
In any case, this patch and all 3 patches in this series have:
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
Please run checkpatch.pl and clean these up.
Ok, Will do it in v2.
Best Regards Yang Xu
thanks, -- Shuah