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| author |   Josef Bacik <jbacik@fb.com> | 2016-11-22 14:04:40 -0500 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-11-22 12:16:32 -0700 |
| commit | 9561a7ade0c205bc2ee035a2ac880478dcc1a024 (patch) | |
| tree | 3c638cde9063a2461b9767ec626b4359445c662a /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg (diff) | |
| download | wireguard-linux-9561a7ade0c205bc2ee035a2ac880478dcc1a024.tar.xz wireguard-linux-9561a7ade0c205bc2ee035a2ac880478dcc1a024.zip | |
nbd: add multi-connection support
NBD can become contended on its single connection. We have to serialize all
writes and we can only process one read response at a time. Fix this by
allowing userspace to provide multiple connections to a single nbd device. This
coupled with block-mq drastically increases performance in multi-process cases.
Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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