tree 49820d74c000321cbbef767aba10a2898b8b4147
parent 633d825ccf450073e4489ee8ab66a44303b1a0d7
author Jens Axboe <axboe@fb.com> 1404400239 -0600
committer Mohamad Ayyash <mkayyash@google.com> 1425693430 -0800

Add support for runtime log compression

If log_compression=64M is specified, fio will "bite" off chunks of
the IO logs and runtime compress them with zlib. This can greatly
reduce the amount of memory required to do iops/bw/lat logging of
a run, at the cost of using some background CPU for the compression.

Signed-off-by: Jens Axboe <axboe@fb.com>