Ubuntu
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  1. Bug #1709220
  2. Comment #3

Comment 3 for bug 1709220

Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2017-08-10 10:41 EDT-------
Aneesh has additional Radix performance fixes (3 more total):

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=424de9c6e3f89399fc11afc1f53f89c5329132da
("powerpc/mm/radix: Avoid flushing the PWC on every flush_tlb_range")
.
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a46cc7a90fd8d95bfbb2b27080efe872a1a51db4
("powerpc/mm/radix: Improve TLB/PWC flushes")
.
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5ce5fe14ed0302315061cf97ce67accd1b25b938
("powerpc/mm/radix: Improve _tlbiel_pid to be usable for PWC flushes")

(upstream, currently scheduled for 4.14)

Can these be included in Zesty as well?

FYI the first set of 3 patches mentioned in the orig bug report helps anywhere from 40% up to 3.5X on unixbench fork/exec testcases. I will post updated numbers for this second set of 3 fixes soon.