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de8fd13843
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Adrian Hunter de8fd13843 perf intel-pt: Fix timeless decoding with perf.data directory 
Intel PT does not capture data in separate directories, so do not
use separate directory processing because it doesn't work for
timeless decoding. It also looks like it doesn't support one_mmap
handling.

Example:

  Before:

    # perf record --kcore -a -e intel_pt/tsc=0/k sleep 0.1
    [ perf record: Woken up 1 times to write data ]
    [ perf record: Captured and wrote 1.799 MB perf.data ]
    # perf script --itrace=bep | head
    #

  After:

    # perf script --itrace=bep | head
    perf 21073 [000]              psb:  psb offs: 0                       ffffffffaa68faf4 native_write_msr+0x4 ([kernel.kallsyms])
    perf 21073 [000]              cbr:  cbr: 45 freq: 4505 MHz (161%)     ffffffffaa68faf4 native_write_msr+0x4 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:                 0 [unknown] ([unknown]) => ffffffffaa68faf6 native_write_msr+0x6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa68faf8 native_write_msr+0x8 ([kernel.kallsyms]) => ffffffffaa61aab0 pt_config_start+0x60 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61aabd pt_config_start+0x6d ([kernel.kallsyms]) => ffffffffaa61b8ad pt_event_start+0x27d ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61b8bb pt_event_start+0x28b ([kernel.kallsyms]) => ffffffffaa61ba60 pt_event_add+0x40 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa61ba76 pt_event_add+0x56 ([kernel.kallsyms]) => ffffffffaa880e86 event_sched_in+0xc6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880e9b event_sched_in+0xdb ([kernel.kallsyms]) => ffffffffaa880ea5 event_sched_in+0xe5 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880eba event_sched_in+0xfa ([kernel.kallsyms]) => ffffffffaa880f96 event_sched_in+0x1d6 ([kernel.kallsyms])
    perf 21073 [000]          1       branches:k:  ffffffffaa880fc8 event_sched_in+0x208 ([kernel.kallsyms]) => ffffffffaa880ec0 event_sched_in+0x100 ([kernel.kallsyms])

Fixes: bb6be405c4 ("perf session: Load data directory files for analysis")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20220428093109.274641-1-adrian.hunter@intel.com
Cc: Ian Rogers <irogers@google.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org
2022-04-28 10:20:52 -03:00
..
accounting delayacct: track delays from memory compact 2022-01-20 08:52:55 +02:00
arch x86/tsx: Disable TSX development mode at boot 2022-04-11 09:58:40 +02:00
bootconfig
bpf Networking fixes for 5.18-rc2, including fixes from bpf and netfilter 2022-04-07 19:01:47 -10:00
build tools build: Filter out options and warnings not supported by clang 2022-04-09 12:34:16 -03:00
cgroup tools/cgroup/slabinfo: update to work with struct slab 2022-02-21 11:34:49 +01:00
counter kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
debugging
edid
firewire
firmware
gpio kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
hv kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
iio Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
include tools: Add kmem_cache_alloc_lru() 2022-04-22 14:24:28 -04:00
io_uring
kvm/kvm_stat
laptop
leds
lib perf tools: Fix segfault accessing sample_id xyarray 2022-04-13 22:23:02 -03:00
memory-model tools/memory-model: Explain syntactic and semantic dependencies 2022-02-01 17:32:30 -08:00
objtool objtool: Fix SLS validation for kcov tail-call replacement 2022-04-05 10:24:40 +02:00
pci kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
pcmcia
perf perf intel-pt: Fix timeless decoding with perf.data directory 2022-04-28 10:20:52 -03:00
power Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
rcu
scripts Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
spi kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
testing RISC-V: 2022-04-22 17:58:36 -07:00
thermal/tmon
time
tracing Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
usb kbuild: replace $(if A,A,B) with $(or A,B) 2022-02-15 12:25:56 +09:00
virtio tools/virtio: compile with -pthread 2022-03-28 16:52:59 -04:00
vm tools/vm/page_owner_sort.c: remove -c option 2022-04-01 11:46:09 -07:00
wmi
Makefile