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authorMike Marciniszyn <mike.marciniszyn@intel.com>2018-05-15 18:31:24 -0700
committerJason Gunthorpe <jgg@mellanox.com>2018-05-24 09:39:25 -0600
commit3ce459cd684b7f18ca79838e62310ffdc930920b (patch)
treedebe30b90ad8f1220da686232988446ddc59d471 /net/netlabel
parent5938d94cf0380bca9e6fbb910c010f4483906c11 (diff)
IB/{rdmavt,hfi1}: Change hrtimer add to use pinned version
Given we are dealing with nano-second level timers, when the timer pops, ensure it happens on the CPU which caused the timer to be set in the first place. This avoids excessive jitter from the desired expiration time by avoiding the cost of switching our context to another CPU that is cache cold for this given timer. Reviewed-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'net/netlabel')
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