Activity log for bug #1730782

Date Who What changed Old value New value Message
2017-11-08 00:06:29 quanxian bug added bug
2018-02-24 00:05:10 Leann Ogasawara tags kernel
2018-02-24 00:05:21 Leann Ogasawara information type Proprietary Public
2018-02-24 00:05:29 Leann Ogasawara bug task added linux (Ubuntu)
2018-02-24 00:05:35 Leann Ogasawara nominated for series Ubuntu Bionic
2018-02-24 00:05:35 Leann Ogasawara bug task added linux (Ubuntu Bionic)
2018-02-24 00:05:41 Leann Ogasawara linux (Ubuntu Bionic): status New Triaged
2018-02-24 00:05:43 Leann Ogasawara linux (Ubuntu Bionic): importance Undecided Medium
2018-02-24 00:05:56 Leann Ogasawara linux (Ubuntu Bionic): assignee Canonical Kernel Team (canonical-kernel-team)
2018-02-27 18:58:43 Joseph Salisbury tags kernel bionic kernel kernel-da-key
2018-05-01 07:59:44 quanxian description Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: TBD Target Release: 18.04 Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: TBD Target Release: 18.10
2018-05-01 07:59:53 quanxian tags bionic kernel kernel-da-key bionic intel-kernel-18.10 kernel kernel-da-key
2018-07-25 23:08:48 Joseph Salisbury intel: status New Won't Fix
2018-10-24 08:09:06 quanxian intel: status Won't Fix New
2018-10-24 08:09:30 quanxian tags bionic intel-kernel-18.10 kernel kernel-da-key bionic intel-kernel-19.04 kernel kernel-da-key
2018-10-24 08:09:38 quanxian description Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: TBD Target Release: 18.10 Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: TBD Target Release: 19.04
2019-02-28 03:56:54 quanxian description Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: TBD Target Release: 19.04 Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: 5.2 Target Release: 19.04
2019-03-01 03:38:45 quanxian intel: status New Fix Released
2019-03-04 02:29:09 quanxian description Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: 5.2 Target Release: 19.04 Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: 4.17 Target Release: 19.04
2019-03-04 02:29:19 quanxian description Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: 4.17 Target Release: 19.04 Description: Workload slows down for default sampling cycles in KNL. There are some processing in perf that's single threaded and bottlenecked when number of cores really go up. A second issue is that things slow down when we issue perf record – workload vs perf record -a – workload Patch is submitted for review https://www.spinics.net/lists/kernel/msg2552460.html https://www.spinics.net/lists/kernel/msg2552461.html https://www.spinics.net/lists/kernel/msg2552462.html https://www.spinics.net/lists/kernel/msg2552463.html Target kernel: 4.17 Target Release: 18.10
2019-04-19 14:35:29 Terry Rudd bug added subscriber Terry Rudd
2019-07-24 21:07:55 Brad Figg tags bionic intel-kernel-19.04 kernel kernel-da-key bionic cscc intel-kernel-19.04 kernel kernel-da-key