** Tags added: cscc
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https://bugs.launchpad.net/bugs/1796904
Title:
[Bionic] Update ThunderX2 implementation defined pmu core events
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This bug was fixed in the package linux - 4.15.0-39.42
---
linux (4.15.0-39.42) bionic; urgency=medium
* linux: 4.15.0-39.42 -proposed tracker (LP: #1799411)
* Linux: insufficient shootdown for paging-structure caches (LP: #1798897)
- mm: move tlb_table_flush to tlb_flush_mmu
-- -proposed kernel testing --
ubuntu@helo:~$ uname -a
Linux helo 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:43:48 UTC 2018
aarch64 aarch64 aarch64 GNU/Linux
ubuntu@helo:~$
ubuntu@helo:~$ apt policy linux-image-generic
linux-image-generic:
Installed: 4.15.0.39.41
Candidate: 4.15.0.39.41
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verifica
** Changed in: linux (Ubuntu Bionic)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1796904
Title:
[Bionic] Update ThunderX2 implementation defined pmu core ev
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
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You
ubuntu@starbuck:~$ sudo perf stat -e
unaligned_ld_spec,unaligned_st_spec,unaligned_ldst_spec,mem_access_rd,mem_access_wr,armv8_pmuv3_0/mem_access/
stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s
stress-ng: info: [4212] dispatching hogs: 2 cpu, 1 io, 1 vm
stress-ng: info: [4212] successful run
A test kernel and tool packages are available in ppa:yarmouth-
team/lp1794838
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https://bugs.launchpad.net/bugs/1796904
Title:
[Bionic] Update ThunderX2 implementation defined pmu core e
ubuntu@starbuck:~$ sudo perf stat -e
l1d_cache_refill_rd,l1d_cache_refill_wr,armv8_pmuv3_0/l1d_cache_refill/
stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 10s
stress-ng: info: [4198] dispatching hogs: 2 cpu, 1 io, 1 vm
stress-ng: info: [4198] successful run completed in 10.01s
Performance count
** Description changed:
[IMPACT]
===
- The ARM architecture defines several events as part of the Performance
Monitor Unit (PMU)
- Extension. In addition, Cavium has added "implementation defined" pmu core
events, which Cavium deems most useful for analyzing performance. Currently
perf
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