Verification: ubuntu@d06-2:~$ cat /proc/version Linux version 5.0.0-28-generic (buildd@bos02-arm64-078) (gcc version 8.3.0 (Ubuntu/Linaro 8.3.0-6ubuntu1)) #30-Ubuntu SMP Wed Sep 4 11:48:26 UTC 2019 ubuntu@d06-2:~$ sudo perf record -e arm_spe/ts_enable=1,pa_enable=1/ dd if=/dev/zero of=/dev/null count=10000 10000+0 records in 10000+0 records out 5120000 bytes (5.1 MB, 4.9 MiB) copied, 0.0179591 s, 285 MB/s [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.233 MB perf.data ] ubuntu@d06-2:~$ ubuntu@d06-2:~$ ubuntu@d06-2:~$ sudo perf report --dump-raw-trace # To display the perf.data header info, please use --header/--header-only options. #
0x768 [0x20]: event: 70 . . ... raw event: size 32 bytes . 0000: 46 00 00 00 00 00 20 00 04 00 00 00 00 00 00 00 F..... ......... . 0010: 39 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9............... 0 0 0x768 [0x20]: PERF_RECORD_AUXTRACE_INFO type: 4 PMU Type 57 0x788 [0x60]: event: 1 . . ... raw event: size 96 bytes . 0000: 01 00 00 00 01 00 60 00 ff ff ff ff 00 00 00 00 ......`......... . 0010: 00 00 08 10 00 00 ff ff ff ff f7 ef ff ff 00 00 ................ . 0020: 00 00 08 10 00 00 ff ff 5b 6b 65 72 6e 65 6c 2e ........[kernel. . 0030: 6b 61 6c 6c 73 79 6d 73 5d 5f 74 65 78 74 00 00 kallsyms]_text.. . 0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ . 0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0 0 0x788 [0x60]: PERF_RECORD_MMAP -1/0: [0xffff000010080000(0xffffeff7ffff) @ 0xffff000010080000]: x [kernel.kal ...skipping... . ... ARM SPE data: size 1272808 bytes . 00000000: b0 20 cb 24 10 00 00 ff c0 PC 0xff00001024cb20 el2 ns=1 . 00000009: 99 08 00 LAT 8 ISSUE . 0000000c: 98 0a 00 LAT 10 TOT . 0000000f: 52 16 00 EV RETIRED L1D-ACCESS TLB-ACCESS ** Tags removed: verification-needed-disco ** Tags added: verification-done-disco -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1841490 Title: ACPI support for the ARMv8.2 Statistical Profiling Extension Status in linux package in Ubuntu: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: [Impact] perf support for the ARMv8.2 Statistical Profiling Extension does not work on ACPI platforms. [Test Case] ubuntu@d06-2:~$ sudo perf record -e arm_spe/ts_enable=1,pa_enable=1/ dd if=/dev/zero of=/dev/null count=10000 10000+0 records in 10000+0 records out 5120000 bytes (5.1 MB, 4.9 MiB) copied, 0.0201586 s, 254 MB/s [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.354 MB perf.data ] ubuntu@d06-2:~$ sudo perf report --dump-raw-trace [...] 0 0 0x4a90 [0x30]: PERF_RECORD_AUXTRACE size: 0x155fd0 offset: 0 ref: 0x226974 . . ... ARM SPE data: size 1400784 bytes . 00000000: b0 28 31 25 10 00 00 ff c0 PC 0xff00001025312 . 00000009: 99 07 00 LAT 7 ISSUE . 0000000c: 98 09 00 LAT 9 TOT . 0000000f: 52 16 00 EV RETIRED L1D-ACC [...] [Fix] d482e575fbf0f perf: arm_spe: Enable ACPI/Platform automatic module loading d24a0c7099b32 arm_pmu: acpi: spe: Add initial MADT/SPE probing 56855a99f3d0d ACPI/PPTT: Add function to return ACPI 6.3 Identical tokens ed2b664fcc807 ACPI/PPTT: Modify node flag detection to find last IDENTICAL [Regression Risk] The functional changes are all ARM specific (while ACPI PPTT is generic, it is only enabled under arch/arm64 currently). There are new macros and an updated structure in generic code, but all pretty innocuous. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1841490/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
