8f26c0037d
libsysprof: sniff various forms of kernel process names
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This is by no means perfect, but it gets the kernel tasks running on my
machine out of the profiles. We will no doubt need to add more in the
future, or find a way to record a flag for that in the capture format.
2023-08-28 15:03:53 -07:00
fd980eca68
libsysprof: always create pid0 info
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That way we don't risk showing "Unknown Process" if we get stack traces
recorded with a 0 pid (which can happen from Perf).
2023-08-28 14:55:43 -07:00
cdfae5f7b9
libsysprof: add callgraph flag to merge similar processes
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This is the backing implementation to allow for merging multiple processes
which have identical comm[] fields.
2023-08-28 13:34:11 -07:00
00c02f0f18
libsysprof: handle missing process gracefully
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If we get a request for a process that we have not captured any information
about then give it the "Unknown Process" symbol. That way we do not crash
and we also maintain our invariant of not mutating the hash table.
2023-08-28 13:34:11 -07:00
aad3441fee
libsysprof: normalize binary path/nick empty strings
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If we get an empty string, just normalize that to NULL so that we can be
more likely to match equality checks via hash comparison.
Additionally, break hashes out into two so that we can improve the
situation where some symbols do not have paths but still match. This
can happen with bundled symbols.
2023-08-28 13:33:37 -07:00
a3a2b02b0d
libsysprof: assert hashtable stays read-only
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We only mutate this during loading of the document so that we can be
confident in multi-threaded workers after loading. This just asserts
that invariant holds true.
2023-08-28 12:19:16 -07:00
5c9c20621e
sysprof: add support for left-heavy sorting of flamegraph
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Related #93
2023-08-27 13:45:09 -07:00
fd3e5af1fa
libsysprof: add category name private helper
2023-08-25 17:41:34 -07:00
00554090d8
libsysprof: check for null node before setting toplevel
2023-08-25 12:42:07 -07:00
3de88108ce
libsysprof: ensure we update count for root node
2023-08-25 12:41:52 -07:00
677c6a19a7
libsysprof: fix kernel (Linux) categorization
2023-08-25 11:37:17 -07:00
507c0e79c2
libsysprof: move callgraph sorting to thread worker
2023-08-24 14:13:17 -07:00
b80c8b8b5b
libsysprof: always increment count for callgraph nodes
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This shouldn't affect categorizing because that only uses the value if
is_toplevel. But with this added, we can use the count for weights in
other tooling w/o needing augmentation.
2023-08-23 14:32:04 -07:00
fd618ccb4b
callgraph: track max height of callgraph
2023-08-23 14:31:10 -07:00
340e92403f
libsysprof: stop streams at end of recording
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Don't wait for disposal to stop this recording.
2023-08-21 16:01:35 -07:00
82020e86be
libsysprof: add instrument to record scheduler switching
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This is to allow us to look at what processes were running when as a way
to get a high-level overview of usage.
2023-08-21 15:05:48 -07:00
bf73d142dc
libsysprof: sort frames with timsort
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These are largely pre-sorted, but not fully when you have merged data. This
uses timsort to speed that up a bit.
In particular, the comparison of various sorts break down to (for a
~32,000,000 record capture.
g_array_sort_with_data() => 3.9 seconds
qsort_r() = > 3.7 seconds
gtk_tim_sort() => .79 seconds
2023-08-18 16:46:28 -07:00
bdf9a55969
libsysprof: be defensive against null traceable
2023-08-17 13:36:39 -07:00
9f00d904b0
Revert "libsysprof: add rwlock for symbol cache"
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This reverts commit d1b4308af7
2023-08-16 15:43:50 -07:00
48dc402c3b
Revert "libsysprof: parallelize capture symbolizing"
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This reverts commit a7a0c782d1
2023-08-16 15:43:49 -07:00
3b97252a8e
Revert "libsysprof: be defensive against null traceable"
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This reverts commit c75022c257
2023-08-16 15:43:46 -07:00
c75022c257
libsysprof: be defensive against null traceable
2023-08-16 14:06:40 -07:00
a7a0c782d1
libsysprof: parallelize capture symbolizing
2023-08-15 22:17:34 -07:00
d1b4308af7
libsysprof: add rwlock for symbol cache
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This is necessary so we can start looking at threading symbolizers.
2023-08-15 19:21:31 -07:00
3598755963
libsysprof: flush incoming events when finalizing ring source
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This just helps ensure we've not lost anything during the shutdown of the
profiler here.
2023-08-15 15:38:02 -07:00
b96bf5c969
libsysprof: increase priority of mapped ring buffer source
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We want to reduce the chances we've lost anything in these, which is
pretty important for memory tracing.
2023-08-15 14:41:23 -07:00
c576df92db
libsysprof: allow specifying type in index model
2023-08-14 21:48:51 -07:00
4967d5faeb
libsysprof: add test for leak detection
2023-08-14 16:02:46 -07:00
f7a32750e2
libsysprof: add leak detector helper
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This is a leak detector by finding allocations which do not have a
corresponding free record.
2023-08-14 16:02:46 -07:00
a27eee8087
libsysprof: give internal access to allocations bitset
2023-08-14 16:02:46 -07:00
45f08e07c9
libsysprof: externalize access to frames array
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This can be useful to optimize some walking paths in other layers.
2023-08-14 16:02:46 -07:00
fd705063bf
libsysprof: defend against empty symbol lists
2023-08-08 14:15:51 -07:00
a1211ec298
libsysprof: add some memory counters
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We will probably add a bunch more here too.
2023-08-07 18:02:05 -07:00
fba4642451
build: fix static dep race in enums
2023-08-07 15:41:43 -07:00
7ec7cb9b84
libsysprof: add a subtitle property
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To make things easier to bind from the window.
2023-08-07 14:47:13 -07:00
c38c1fb4b0
libsysprof: allow specifying phase for subprocess output
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This is helpful in that you can specify which phase of the capture the
process should be run so that it's less likely to show up on profiles.
2023-08-07 12:54:46 -07:00
4250abf81e
libsysprof: setup perf streams in prepare
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This starts the perf streams from prepare instead of from record so that
we can do the linux instrument work in prepare. The samples are dropped
until our start-time is set.
Doing it this way removes sysprof-cli and sysprofd greatly from the
overhead in the callgraph which is useful so that the user gets to see
what they really care about.
It has the added benefit that we're less likely to see the pkla processes
showing up from authorizing our D-Bus connection for creating per streams.
2023-08-07 12:14:32 -07:00
053271f946
sysprof: implement document saving
2023-08-06 17:59:50 -07:00
d9932de4ff
libsysprof: remove unused code
2023-08-06 16:32:37 -07:00
56332e0071
libsysprof: remove lsusb from linux instrument
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This is done more generically now with the graphical recorder.
2023-08-06 15:59:41 -07:00
fd6e9c964e
libsysprof: remove glxinfo/eglinfo from linux device
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This is a separate instrument now.
2023-08-06 15:43:22 -07:00
15d9cbc28f
libsysprof: add test for subprocess output
2023-08-06 14:51:42 -07:00
433dff95ce
libsysprof: add helper instrument for subprocess output
2023-08-06 14:51:42 -07:00
fe4995cf1f
libsysprof: synchronize access to tid symbols hashtable
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This can get mutated after the document is loaded, so we need to
synchronize access to it.
2023-08-06 02:18:43 -07:00
c5517c0ead
libsysprof: try to break cycles at end of recording
2023-08-05 23:42:57 -07:00
3ddf806f92
libsysprof: avoid fork amplification from recording
2023-08-04 16:00:01 -07:00
51e1e4ef4b
Revert "libsysprof: do process setup before recording starts"
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This reverts commit a286c2a8cb
2023-08-04 15:36:13 -07:00
56680ae12f
libsysprof: implement follow fork instead of tracking spawnable
2023-08-04 15:31:00 -07:00
48e94181a7
libsysprof: remove unused GObjectClass
2023-08-04 15:30:04 -07:00
c705bae53e
libsysprof: notify instruments of process spawn
2023-08-04 15:02:38 -07:00
