tmp_suning_uos_patched/Documentation/device-mapper
Mikulas Patocka 0f5d8e6ee7 dm crypt: add 'submit_from_crypt_cpus' option
Make it possible to disable offloading writes by setting the optional
'submit_from_crypt_cpus' table argument.

There are some situations where offloading write bios from the
encryption threads to a single thread degrades performance
significantly.

The default is to offload write bios to the same thread because it
benefits CFQ to have writes submitted using the same IO context.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-02-16 11:11:15 -05:00
..
cache-policies.txt dm cache policy mq: simplify ability to promote sequential IO to the cache 2014-11-10 15:25:30 -05:00
cache.txt
delay.txt
dm-crypt.txt dm crypt: add 'submit_from_crypt_cpus' option 2015-02-16 11:11:15 -05:00
dm-flakey.txt
dm-io.txt
dm-log.txt
dm-queue-length.txt
dm-raid.txt
dm-service-time.txt
dm-uevent.txt
era.txt
kcopyd.txt
linear.txt
persistent-data.txt
snapshot.txt
statistics.txt
striped.txt
switch.txt
thin-provisioning.txt
verity.txt
zero.txt