In my test, serial io for compress file will make multithread small write performance drop a lot.
I'm try to fingure out why we need __should_serialize_io, IMO, we use __should_serialize_io to avoid deadlock or try to improve sequential performance, but I don't understand why we should do this for compressed file. In my test, if we just remove this, write same file in multithread will have problem, but parallel write different files in multithread is ok. So I think maybe we should use another lock to allow write different files in multithread. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
