This bug was fixed in the package multipath-tools - 0.6.4-3ubuntu2
---------------
multipath-tools (0.6.4-3ubuntu2) zesty; urgency=medium
* debian/initramfs/hooks:
- Remove old dm-emc module; it hasn't been in kernel since 2.6.27.
- Add dm-queue-length: users may want to change from the default selector
and should be able to do so. (LP: #1673350)
* debian/patches/path_selector.patch, debian/patches/series: remove
path_selector.patch to get back to the "right" default selector of
service-time, which has been included in the kernel module packages for
a while now and has better throughput than round-robin. It's also the
default upstream. (LP: #1634161)
-- Mathieu Trudel-Lapierre <cypher...@ubuntu.com> Fri, 17 Mar 2017
09:37:36 -0400
** Changed in: multipath-tools (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1634161
Title:
Default multipath policy is round-robin, shows considerably worse read
throughput compared to using service-time
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