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997 Commits

Author SHA1 Message Date
Simonas Kazlauskas
b03da81afa Fix build on macos 
It was broken by a110b42011.

In addition, adjust the CI definition to test builds on macOS.
 2020-06-20 20:44:55 +03:00
Simonas Kazlauskas
29886435b4 ___tracy_alloc_* take pointer-size pairs 
This enables better bindings in languages that do not have 0-terminated
strings for source/function name. It does not introduce any additional
overhead in languages that do use 0-terminated strings, either, but it
_is_ a breaking API change.

Fixes https://github.com/wolfpld/tracy/issues/53
 2020-06-20 20:35:42 +03:00
Simonas Kazlauskas
a110b42011 Add ___tracy_init_thread function 
This function needs to be called for each non-main thread before calling
the `___tracy_alloc_` functions.

Alternative way to achieve this could be initializing the allocator
transparently in the `___tracy_alloc_*` calls.
 2020-06-20 04:22:32 +03:00
Bartosz Taudul
aa3b0de1f5 Use proper cpuid flag. 2020-06-10 16:25:19 +02:00
Bartosz Taudul
284d49b34b Change rdtscp check to rdtsc check. 2020-06-08 19:35:42 +02:00
Bartosz Taudul
65314e0c90 Set proper SymbolData contents on symbol retrieval error. 2020-06-04 17:46:39 +02:00
Graydon Hoare
28a29d071f
only write SysTime::used if fscanf succeeds 2020-06-03 19:54:49 -07:00
Graydon Hoare
93b7b5a8e7
ensure regs is initialized even if cpuid fails 2020-06-03 19:54:48 -07:00
Bartosz Taudul
54eb75b063 Report symbol entry address in inline function discovery. 2020-05-30 15:38:59 +02:00
Bartosz Taudul
2b304581cf Implement transfer of integral values for zones. 2020-05-24 16:13:09 +02:00
Bartosz Taudul
1bcde1f2ff Only one branch. 2020-05-24 13:41:41 +02:00
kudansam
1151ec1328 Fix defines when compiling with -Werror=undef 
Some ARM defines fail when compiling with -Werror=undef as they rely on
the missing define mapping to 0.
 2020-05-22 15:48:59 +02:00
Thales Sabino
c2c234cf5a Fix crash when running Tracy from DLLs 
Instantiating Tracy from within a DLL will tie its internal threads life-time to the DLL. Windows does not guarantee
that threads will be alive after the main function. This has implications in the Profiler dtor since will try to perform
some deallocations, however, _memory_deallocate_large will try to get the heap of the current thread which can
be invalid at the point of shutdown causing a crash. Checking the pointer here will won't make TRACE_NO_EXIT
work, but it will prevent the Profiler from crashing.
 2020-05-21 14:26:29 +01:00
Bartosz Taudul
4eb78f5c86 Auto-initialize profiler in delayed init scenario. 2020-05-19 13:55:54 +02:00
Bartosz Taudul
fad7e72fd4 Harden against uninitialized rpmalloc. 
Initialize rpmalloc either by explicitly calling InitRPMallocThread(),
or by forcing initialization of thread local variables block.
 2020-05-19 13:51:11 +02:00
Bartosz Taudul
665c6d6699 Don't check for allocation validity. 
Will fail anyway right afterwards, if nullptr.
 2020-05-16 16:40:25 +02:00
Bartosz Taudul
21c168156c Restrict client to C++11. 2020-05-13 18:15:12 +02:00
Bartosz Taudul
e9f93f5bc7 Send lean frame images. 2020-05-10 20:16:08 +02:00
Bartosz Taudul
03b5dfacd6 Send lean callstack samples. 2020-05-10 20:00:51 +02:00
Bartosz Taudul
09388f3c99 Send lean callstack allocs. 2020-05-10 19:56:36 +02:00
Bartosz Taudul
5a774c82cc Send lean callstacks. 2020-05-10 19:43:12 +02:00
Bartosz Taudul
f0ade07be8 Send lean memory callstacks. 2020-05-10 19:28:08 +02:00
Bartosz Taudul
2dc07fca0b Send lean allocated source locations. 2020-05-10 19:20:59 +02:00
Bartosz Taudul
91bb392678 Avoid executing strlen() twice in assert-enabled builds. 2020-05-10 15:55:12 +02:00
txfx
412d252eea Remove extra semicolons at the end of namespaces 2020-05-10 15:32:39 +02:00
Bartosz Taudul
a47c7d467f Send x86 processor info in welcome message. 2020-05-06 19:18:17 +02:00
Bartosz Taudul
f13413922d Use one cpuid implementation. 2020-05-06 18:52:36 +02:00
Rokas Kupstys
04eaf358d0 Fix linking error in some configurations. Unresolved CallTrace symbol was observed in static MSVC RelWithDebInfo build (but not in debug build). 2020-05-05 13:23:46 +03:00
ikrima
707117c04f Build sanitization & Static analysis warning fixes 
- Wrapping FORCEINLINE & WIN32_LEAN_AND_MEAN definess with ifndef bc other libraries may define it and trigger redefinition warning
- Possibly contentious given tone in the manual (:P) but removing variable shadowing in TracySysTrace.cpp
  - Alternate Solution: Add #define TRACY_FORCE_SILENT_WARNINGS toggle-able flag. If flag is enabled, push/pop warning disables that have to be included in client code
 2020-05-02 14:52:57 -07:00
Bartosz Taudul
14ec246659 Fix typo. 2020-04-24 00:55:57 +02:00
Bartosz Taudul
a5bff2f7e5 Sleep to force rescheduling main thread during init. 
This fixes problems with first context switch data region possibly not being
available for the main thread, if no rescheduling was performed after sys
tracing has started.
 2020-04-14 22:45:32 +02:00
Bartosz Taudul
3b85c51e5f Search for free listen port, if default is occupied. 2020-04-13 21:40:52 +02:00
Bartosz Taudul
b389ccbb38 Issue just one read call when handling server queries. 2020-04-13 14:32:31 +02:00
Bartosz Taudul
1bbece649f Implement socket read without exit check. 2020-04-13 14:22:58 +02:00
Bartosz Taudul
a2187565d1 Optimize non-native-size memcpy. 2020-04-13 13:45:21 +02:00
Bartosz Taudul
b69aaf04e9 Add support for QPC timer. 2020-04-07 22:01:31 +02:00
Bartosz Taudul
34b512d04b Don't declare unused variables on cygwin. 2020-04-07 21:41:12 +02:00
Bartosz Taudul
8d9a611874 Get rid of unicode ifdefs. 2020-04-07 21:35:37 +02:00
Bartosz Taudul
69c5e667ae Dynamically load Get/SetThreadDescription. 2020-04-07 21:33:03 +02:00
Bartosz Taudul
7fca642c3d Compress full-quality DXT1 on AVX2 path. 2020-04-05 17:10:43 +02:00
Bartosz Taudul
a6468b6b6e Sleep when clearing queues if listen port is occupied. 2020-04-04 21:08:13 +02:00
Bartosz Taudul
b2a8b53efa Query source location of each assembly instruction. 2020-04-01 21:43:03 +02:00
Bartosz Taudul
0ba0125eb5 Cosmetics. 2020-04-01 21:42:14 +02:00
Bartosz Taudul
a8e8a4a167 Add code address to function, line decoder. 2020-04-01 21:41:33 +02:00
Bartosz Taudul
36ddd0b98b Don't use new to allocate memory on the client. 2020-03-28 21:27:19 +01:00
Bartosz Taudul
9b8eb69886 Apparently sampled call stacks may be empty. 2020-03-28 16:09:44 +01:00
Bartosz Taudul
40281ce2a1 Add default no-op to switch. 2020-03-26 01:07:25 +01:00
Bartosz Taudul
add5b29d03 Report CPU architecture in welcome message. 2020-03-25 21:28:02 +01:00
Bartosz Taudul
ce449ac0e2 Notify server that parameter was handled. 2020-03-25 20:37:26 +01:00
Bartosz Taudul
f114ec3f80 Add code transfer from client to server. 2020-03-25 20:04:55 +01:00
Bartosz Taudul
3e0e120222 Add extra parameter to server queries. 2020-03-25 20:04:01 +01:00
Bartosz Taudul
c999a74d34 Symbol length transfer. 2020-03-25 18:32:36 +01:00
Bartosz Taudul
d47e6819a8 Collect symbol sizes. 2020-03-25 18:28:28 +01:00
Bartosz Taudul
6c0c508280 Ignore kernel-only stacks. 
It is common to receive duplicate stack traces for the same timestamp
(and thread), one containing proper user-space stack, and the second one
containing only kernel frames. Discard the second one, as there's no
documentation how this should be interpreted and the kernel stack is
mostly useless.
 2020-03-21 15:25:30 +01:00
Bartosz Taudul
c7afda2562 Exit processing loops when trace has stopped. 2020-03-10 18:56:49 +01:00
Bartosz Taudul
c6bb08355c Allow specification of port through env variable. 2020-03-08 16:14:36 +01:00
Bartosz Taudul
1da62c2190 Send deferred lock names. 2020-03-08 15:05:35 +01:00
Bartosz Taudul
127224acc6 Send listen port in broadcast message. 2020-03-08 14:37:59 +01:00
Bartosz Taudul
14c896573d Separate config for data and broadcast port. 2020-03-08 14:34:09 +01:00
Bartosz Taudul
2ffaa88c9e Fix typo. 2020-03-08 14:19:08 +01:00
Bartosz Taudul
e7240cb77d Custom lock name transfer. 2020-03-08 13:47:38 +01:00
Bartosz Taudul
f945278959 Fix rpmalloc on android. 2020-03-02 17:10:47 +01:00
Bartosz Taudul
c36ed4b8b8 Boring warning fixes. 2020-03-01 01:48:20 +01:00
Bartosz Taudul
c23984dd6a Fix static assert in rpmalloc. 2020-03-01 01:31:31 +01:00
Bartosz Taudul
e9a32d5dc7 Greatly increase queue block size. 
Previous block size could hold only 256 elements (8KB), which stressed
out the memory allocator. Storing 65536 elements (2MB) per block almost
completely reduces the allocator pressure.
 2020-03-01 01:15:13 +01:00
Bartosz Taudul
82f463724c Update rpmalloc to 1.4.0. 
Notable changes: use C++11 atomics everywhere.
 2020-03-01 01:02:25 +01:00
Bartosz Taudul
710a2a64e4 Fix copy pasta. 2020-02-27 14:08:56 +01:00
Bartosz Taudul
4346620afa No need to copy module name. 2020-02-27 13:45:39 +01:00
Bartosz Taudul
fd8a9465d4 Cosmetics. 2020-02-27 13:40:41 +01:00
Bartosz Taudul
9ae71ac4ee Dl_info doesn't destroy data. 2020-02-27 13:28:45 +01:00
Bartosz Taudul
5f6b3d2cd5 No need for module name intermediate buffer. 2020-02-27 13:24:36 +01:00
Bartosz Taudul
474383b656 Only copy symbol strings, if needed. 2020-02-27 13:17:26 +01:00
Bartosz Taudul
2df6f9068a Don't retrieve symbol name for address. 2020-02-27 12:58:01 +01:00
Bartosz Taudul
be5793987e Don't send symbol name. 2020-02-27 12:49:48 +01:00
Bartosz Taudul
56dce646cc Symbol address decoding on unix. 2020-02-26 23:38:04 +01:00
Bartosz Taudul
4ddafdeeaf Symbol address decoding for old androids. 2020-02-26 23:24:18 +01:00
Bartosz Taudul
7c506d5426 Remove unused variables. 2020-02-26 23:24:11 +01:00
Bartosz Taudul
26cee8acf0 Perform symbol information queries. 2020-02-26 22:35:15 +01:00
Bartosz Taudul
ef05570540 Symbol address decoding (win32 implementation). 2020-02-26 22:32:42 +01:00
Bartosz Taudul
03ff08a934 Increase max name size. 2020-02-26 22:32:09 +01:00
Bartosz Taudul
d1fcf80c2d Move definition of max symbol name size to one place. 2020-02-26 22:30:11 +01:00
Bartosz Taudul
c0f49c648b Validate size. 2020-02-26 22:27:10 +01:00
Bartosz Taudul
890cec9872 Retrieve symbol addresses on unix. 2020-02-26 02:25:45 +01:00
Bartosz Taudul
9231261d73 Retrieve image name on unix. 2020-02-26 02:11:51 +01:00
Bartosz Taudul
fe80a7ed46 Retrieve symbol address on old androids. 2020-02-26 02:06:44 +01:00
Bartosz Taudul
abf8c42a7c Send module name. 2020-02-26 00:33:09 +01:00
Bartosz Taudul
7d0dac9ae2 Store callstack frame module name. 2020-02-26 00:32:47 +01:00
Bartosz Taudul
4cf520db93 Unify copying symbol strings. 2020-02-26 00:02:30 +01:00
Bartosz Taudul
c5b2d14f8c Send sampling period in welcome message. 2020-02-25 23:12:31 +01:00
Bartosz Taudul
2b7f5091f1 Store sampling period. 2020-02-25 23:08:52 +01:00
Bartosz Taudul
3402d16548 Send symbol base address. 2020-02-25 23:03:40 +01:00
Bartosz Taudul
85ffe0ea04 Don't search module list for kernel addresses. 2020-02-24 23:04:53 +01:00
Bartosz Taudul
ece32b47df Zero capacity is invalid. 2020-02-24 23:04:53 +01:00
Bartosz Taudul
9c9e854005 Replace list with vector. 
Maybe next time let's not forget that there's already a custom
allocating vector available.
 2020-02-24 23:04:53 +01:00
Bartosz Taudul
24cd73e366 Fix linux tracing with long pids. 2020-02-23 18:23:53 +01:00
Bartosz Taudul
0fa1d25d98 Disable trace annotations. 2020-02-23 18:20:48 +01:00
Bartosz Taudul
02d200878d Process queue data in-place. 2020-02-23 15:18:24 +01:00
Bartosz Taudul
96034bca3e Force inline AppendData(), NeedDataSize(). 2020-02-23 14:44:19 +01:00
Bartosz Taudul
bd34c24b84 Increase block size. 2020-02-23 12:35:30 +01:00
Bartosz Taudul
26b13abac8 Pre-fill module cache. 2020-02-22 21:32:18 +01:00
Bartosz Taudul
0a02cf32be Add module name cache. 2020-02-22 21:32:10 +01:00
Bartosz Taudul
096e8cd8ae Retrieve module name if symbol name cannot be found. 2020-02-22 21:06:32 +01:00
Bartosz Taudul
d0930e9053 Use maximum possible sampling rate. 2020-02-22 19:08:15 +01:00
Bartosz Taudul
4502858407 Use maximum possible etw buffer size (1MB). 2020-02-22 18:52:38 +01:00
Bartosz Taudul
e270603117 Don't write reference time to memory in each iteration. 2020-02-22 18:52:37 +01:00
Bartosz Taudul
054a6f8563 Send time deltas in callstack sample data packets. 2020-02-22 16:42:47 +01:00
Bartosz Taudul
1ee80e0df5 Send/free callstack sample payloads. 2020-02-22 16:20:43 +01:00
Bartosz Taudul
3b0ed5337b Provide TraceSetInformation() definition for cygwin. 2020-02-22 16:03:07 +01:00
Bartosz Taudul
baf8e6fe80 No support for sampling on 32-bit windows. 
Note that 32-bit applications running on 64-bit windows will perform
sampling.
 2020-02-22 14:16:04 +01:00
Bartosz Taudul
23fe3e623d 64-bit only version of callstack payload sender. 2020-02-22 14:05:01 +01:00
Bartosz Taudul
9e9c7db5b1 Send sampled call stacks. 2020-02-22 13:42:09 +01:00
Bartosz Taudul
f186540c4f Fix callstack pointers in 32-bit builds. 2020-02-22 13:38:09 +01:00
Bartosz Taudul
9b9474ada1 Request stack traces for execution sampling events. 2020-02-22 13:13:49 +01:00
Bartosz Taudul
28d0f387ea Setup execution sampling profiling. 2020-02-22 13:13:32 +01:00
Bartosz Taudul
ad77b4f73b Store current process id. 2020-02-22 13:11:16 +01:00
Bartosz Taudul
1f671fbacc Keep sys trace variables local. 2020-02-22 13:08:35 +01:00
Bartosz Taudul
539ccf5a61 Check provider id in etw callback. 2020-02-22 12:56:33 +01:00
Bartosz Taudul
0b82902618 Optimize scalar DXT1 compression. 2020-02-15 13:43:40 +01:00
Bartosz Taudul
838c0aaaa9 Check if BUS_MCEERR_AR and BUS_MCEERR_AO are defined. 2020-02-12 01:27:03 +01:00
Bartosz Taudul
2c8d519d70 Fix typo. 2020-02-11 15:12:06 +01:00
Bartosz Taudul
abfa4c65df Update fun list of iDevices. 2020-02-10 16:13:32 +01:00
Bartosz Taudul
8d5f4d7363 Always use init once to initialize rpmalloc. 2020-01-30 20:08:34 +01:00
Bartosz Taudul
885fa16373 Don't retrieve connection id, if zone is not active. 2020-01-25 17:21:30 +01:00
Bartosz Taudul
aa94df0845 Replace rpmalloc_thread_initialize with InitRPMallocThread(). 2020-01-25 17:16:08 +01:00
Bartosz Taudul
ab2fbd6164 Move ParamaterSetup() implementation to header. 2020-01-25 16:51:17 +01:00
Bartosz Taudul
13370dc01c Hide RtlWalkFrameChain inside library. 2020-01-25 16:49:29 +01:00
Bartosz Taudul
a90004b983 Move Set/GetThreadName() to Tracy API. 2020-01-25 16:36:58 +01:00
Bartosz Taudul
6f31eb2a9d Disable MSVC idiocy. 2020-01-20 22:49:03 +01:00
Bartosz Taudul
55d03cb03e Hide async queue setup/commit behind macros. 2020-01-19 15:06:11 +01:00
Bartosz Taudul
25082b2bec Don't report CPU topology if delayed init is active. 
Reporting topology requires producer to be available, which creates a
deadlock during delayed init data structures construction.

Calling GetProducer() results in a call to GetProfilerThreadData(),
which in turn calls GetProfilerData() to construct its thread local
variable. However, at this point we already are calling
GetProfilerData() (to construct the profiler itself). This would result
in an incorrect double construction of data, but the code already
prevents this by allowing init code to be entered only once. Hence the
deadlock.

Currently this is a non-issue, as no platform which can report CPU
topology needs to use delayed init.
 2020-01-14 19:41:34 +01:00
Bartosz Taudul
4f8eb53e8b Capture exact tid to pid mapping on windows. 2020-01-14 02:06:22 +01:00
Bartosz Taudul
4ef2ce4622 Fix _mm256_cvtsi256_si32 on gcc. 2019-12-12 02:13:12 +01:00
Bartosz Taudul
129b80ef0f Free source location, if zone is not active. 2019-12-06 00:42:42 +01:00
Bartosz Taudul
b9cdf2cbb7 Expose srcloc allocation in C API. 2019-12-06 00:25:52 +01:00
Bartosz Taudul
399b87fecc Add allocated srcloc zone begin emit functions to C API. 2019-12-06 00:22:49 +01:00
Bartosz Taudul
68ff33d0ba Extract source location allocation functionality. 2019-12-06 00:15:46 +01:00
Bartosz Taudul
e8fcc250a1 Report CPU topology on Linux. 2019-11-30 01:51:29 +01:00
Bartosz Taudul
712403e9fd Transfer, display, save CPU topology data. 2019-11-29 22:41:41 +01:00
Bartosz Taudul
59371eef5a Obtain CPU topology on windows. 2019-11-29 18:29:31 +01:00
thedmd
a1e2c533f6 libbacktrace: Add support for Mach-O (dSYM) 
`macho.cpp` was backported from official libbacktrace repository.
 2019-11-29 12:04:47 +01:00
Bartosz Taudul
a7d2d5f08b Fix DeferItem() call. 2019-11-26 01:10:50 +01:00
Bartosz Taudul
4551553eb4 Implement setting client parameters from server. 2019-11-25 23:59:48 +01:00
Bartosz Taudul
c5c9dfb0c9 Native callstacks are now optional in allocated callstack messages. 2019-11-25 22:54:10 +01:00
Bartosz Taudul
37eef59d54 Implement reading sys time on BSD. 2019-11-21 20:41:57 +01:00
Bartosz Taudul
c7a22cc1ff Use libbacktrace on BSD. 2019-11-21 20:41:57 +01:00
Bartosz Taudul
bd7b0a8197 Support callstack capture on BSD. 2019-11-21 02:34:42 +01:00
Bartosz Taudul
c79449a6a1 Get proper program name on BSD. 2019-11-21 02:16:12 +01:00
Bartosz Taudul
7940977dba Report physical memory size on BSD. 2019-11-21 02:14:08 +01:00
Bartosz Taudul
3854ae11b2 Revert "Remove dead code." 
This reverts commit a36b73f745.
 2019-11-17 17:38:02 +01:00
Bartosz Taudul
a36b73f745 Remove dead code. 2019-11-16 18:34:05 +01:00
Bartosz Taudul
8286b0b72f Plumbing for message call stacks. 2019-11-14 23:40:41 +01:00
Bartosz Taudul
0befc75f83 Fix conflicts with X.h. 2019-11-14 18:24:29 +01:00
Bartosz Taudul
655864eb7c Enable crash handler on cygwin. 
Crash is properly recorded, but the profiler hangs while waiting for
shutdown finish.
 2019-11-07 19:20:13 +01:00
Bartosz Taudul
3fd74a92f9 Native threads are used on mingw. 2019-11-07 19:02:54 +01:00
Bartosz Taudul
351e220d30 Don't calculate queue delay if delayed init is used. 
Queue calibration requires queue access during profiler construction. This
in turn requires construction of profiler data block, *which at this point
is underway*, because the profiler is being constructed.
 2019-06-19 17:29:04 +02:00
Bartosz Taudul
c98f1f0b6b Make sure profiler is initialized only once in delayed init scenario. 2019-06-19 17:28:18 +02:00
Bartosz Taudul
d4f58ddaf3 Use native windows threads on cygwin, mingw. 2019-11-06 01:42:14 +01:00
Bartosz Taudul
ca198e44d3 Remove dead code from concurrentqueue. 2019-11-05 21:40:52 +01:00
Bartosz Taudul
b5590ed197 Include <mutex> for std::once. 2019-11-05 21:40:35 +01:00
Bartosz Taudul
3e9bb80217 More header cleanup. 2019-11-05 20:15:53 +01:00
Bartosz Taudul
6bbf273581 Partial header inclusion cleanup. 2019-11-05 20:09:40 +01:00
Bartosz Taudul
907574e637 Allow remote plot configuration. 2019-11-05 17:45:19 +01:00
Bartosz Taudul
f34609fd9b Set per-cpu kernel buffer size to 512 KB. 
The default setting was causing events to be lost on Android.
 2019-11-03 21:52:20 +01:00
Bartosz Taudul
b8d459d48b Use proper string size (for consistency). 
On Android code path this value is ignored.
 2019-11-03 21:51:49 +01:00
Bartosz Taudul
ca0fae33d1 Remove obsolete assert. 
Before-terminate-events now include events that have time delta
processing, with no memory to free.
 2019-11-01 20:10:24 +01:00
Bartosz Taudul
1f0c18882c Don't collect sys time after application has exited. 2019-10-29 23:05:14 +01:00
Bartosz Taudul
0f2503d334 Send time deltas in GPU time events. 2019-10-25 19:52:01 +02:00
Bartosz Taudul
8fa5188176 Send delta times for context switches. 2019-10-25 19:13:11 +02:00
Bartosz Taudul
25b3cdc1ee Send thread wakeups when handling disconnect request. 2019-10-25 18:22:42 +02:00
Bartosz Taudul
04b132b6e2 Check if requested data size doesn't overflow buffer. 2019-10-24 21:22:22 +02:00
Bartosz Taudul
ba61a9ed84 Transfer time deltas, not absolute times. 
This change significantly reduces network bandwidth requirements.

Implemented for:
- CPU zones,
- GPU zones,
- locks,
- plots,
- memory events.
 2019-10-24 00:06:41 +02:00
Bartosz Taudul
cf88265304 Full 64-bit register is set by rdtsc. 2019-10-21 01:13:55 +02:00
Bartosz Taudul
07b66cd4ab Move fake source location out of loop. 2019-10-20 22:18:05 +02:00
Bartosz Taudul
909503403b Simplify delay calibration. 2019-10-20 22:13:29 +02:00
Bartosz Taudul
c774534b47 Use rdtsc instead of rdtscp. 
But rdtscp is serializing!

No, it's not. Quoting the Intel Instruction Set Reference:

"The RDTSCP instruction is not a serializing instruction, but it does
wait until all previous instructions have executed and all previous
loads are globally visible. But it does not wait for previous stores to
be globally visible, and subsequent instructions may begin execution
before the read operation is performed.",

"The RDTSC instruction is not a serializing instruction. It does not
necessarily wait until all previous instructions have been executed
before reading the counter. Similarly, subsequent instructions may begin
execution before the read operation is performed."

So, the difference is in waiting for prior instructions to finish
executing. Notice that even in the rdtscp case, execution of the
following instructions may commence before time measurement is finished
and data stores may be still pending.

But, you may say, Intel in its "How to Benchmark Code Execution Times"
document shows that using rdtscp is superior to rdstc. Well, not
exactly. What they do show is that when a *single function* is
considered, there are ways to measure its execution time with little to
no error.

This is not what Tracy is doing.

In our case there is no way to determine absolute "this is before" and
"this is after" points of a zone, as we probably already are inside
another zone.  Stopping the CPU execution, so that a deeply nested zone
may be measured with great precision, will skew the measurements of all
parent zones.

And this is not what we want to measure, anyway. We are not interested
in how a *single function* behaves, but how a *whole program* behaves.
The out-of-order CPU behavior may influence the measurements? Good! We
are interested in that. We want to see *how* the code is really
executed. How is *stopping* the CPU to make a timer read an appropriate
thing to do, when we want to see how a program is performing?

At least that's the theory.

And besides all that, the profiling overhead is now reduced.
 2019-10-20 20:52:33 +02:00
Bartosz Taudul
30fc2f02ab Omit calculation of on-stack variable address. 2019-10-20 19:42:29 +02:00
Bartosz Taudul
c3870f8837 Use proper type. 2019-10-10 20:30:08 +02:00
Bartosz Taudul
707f113bda Add missing NOMINMAX definitions. 2019-10-10 20:29:06 +02:00
Bartosz Taudul
7cf3608493 Avoid unused variables. 2019-10-05 02:11:45 +02:00
Bartosz Taudul
e481b5ba22 Add missing thread sent indication. 2019-10-04 19:18:47 +02:00
Bartosz Taudul
9e1935f070 Make C API symbols visible across dlls. 2019-10-03 22:39:26 +02:00
Bartosz Taudul
130365f4ff Inject tracy_systrace into filesystem and use instead of cat. 
Statistics for a one-minute trace:

  Capture tool | Running time | Running regions
---------------+--------------+-----------------
      cat      |    25.11 s   |     392,300
tracy_systrace |    10.41 s   |      12,249
 2019-09-27 15:51:29 +02:00
Bartosz Taudul
3dba4088ee Embed precompiled tracy_systrace for android. 2019-09-27 15:50:58 +02:00
Bartosz Taudul
e13cbf52fd Allow changing tracy port in client. 2019-09-21 15:11:15 +02:00
Bartosz Taudul
a221f121ba Extract lock state handling to a separate context class. 2019-09-21 14:55:14 +02:00
Bartosz Taudul
37661fd2ee Fix 32 bit NEON version of DXT1 compression. 
This reverts commit b32e8fa24e.

Apparently it is possible to receive non-uniform data in alpha channel, which
breaks the original assumption about not needing the mask. This seemed to be a
problem only on 32 bit NEON implementation of DXT1 compression. Other
implementations handle such data without degradation of visual output.
 2019-09-03 21:37:07 +02:00
Bartosz Taudul
7a6564feae Only recycle producers, if there's no data in queue. 
("The queue" is per-thread partial queue here.)

This fixes a problem where one thread writes to the queue, then is
terminated, making the (partially filled) queue available for other
threads to recycle. If another thread re-owns the queue, it will change
the associated thread id, while part of the queue was filled by the
original thread. This obviously created invalid data during dequeue.

The fix makes the recycling process check not only for queue inactivity
(which is marked when the original thread terminates), but also if the
queue is empty, preventing mixing data from different threads.
 2019-08-30 14:28:44 +02:00
Bartosz Taudul
00b26c1acf Fix TRACY_NO_SYSTEM_TRACING. 2019-08-26 18:02:10 +02:00
Bartosz Taudul
fbeee3cf61 Fix (?) invalid function pointer signature. 2019-08-26 17:59:58 +02:00
Bartosz Taudul
78127dc357 System threads only allow limited information queries. 2019-08-25 00:33:22 +02:00
Bartosz Taudul
deb59b4c38 Somehow fix event ordering. 2019-08-24 01:43:55 +02:00
Bartosz Taudul
1e74a89924 Check if there's data to read from kernel. 
Reading from kernel pipe, while being a blocking operation, spin locks the
thread.
 2019-08-24 01:06:21 +02:00
Bartosz Taudul
8f6e94d75c Sleep if sys trace pipe buffer underruns. 2019-08-24 00:42:00 +02:00
Bartosz Taudul
2d50d07438 Allow completely disabling system tracing. 2019-08-21 01:16:25 +02:00
Bartosz Taudul
0cbb853945 Add missing SetThreadName() calls. 2019-08-20 16:23:00 +02:00
Bartosz Taudul
332262dd84 Shorter thread names. 2019-08-20 16:22:54 +02:00
Bartosz Taudul
247acd03ee Kernel tracing on android. 2019-08-20 15:49:40 +02:00
Bartosz Taudul
e427d67347 Don't bail out if unimportant variables are not available. 2019-08-20 12:19:05 +02:00
Bartosz Taudul
bfda30be0b Use su on android to set tracing variables. 2019-08-20 12:18:46 +02:00
Bartosz Taudul
9d87a8394d Add missing getline() implementation for android API < 18. 2019-08-19 15:26:09 +02:00
Bartosz Taudul
9be6f4a414 Fix typo. 2019-08-19 13:03:37 +02:00
Bartosz Taudul
d209bb4d01 Add missing function pointer checks. 2019-08-19 12:47:27 +02:00
Bartosz Taudul
20e8a5ecc8 Create tid to pid mapping. 2019-08-17 22:32:41 +02:00
Bartosz Taudul
678e942e9f Transfer PID of profiled program. 2019-08-17 22:19:04 +02:00
Bartosz Taudul
77c636c3fd Retrieve module name for threads with no names on windows. 2019-08-17 21:24:40 +02:00
Bartosz Taudul
f7589bde02 Trace thread wakeups on linux. 2019-08-17 17:18:11 +02:00
Bartosz Taudul
414f903cc5 Collect thread wakeup data. 2019-08-17 17:05:29 +02:00
Bartosz Taudul
e9080bdbcd Hardcode windows PID 4 as "System". 2019-08-17 03:44:47 +02:00
Bartosz Taudul
40eb8a5a03 Proper check for invalid handle. 2019-08-17 03:44:11 +02:00
Bartosz Taudul
6c1dd8eaec Cast thread handle to DWORD. 2019-08-16 21:21:37 +02:00
Bartosz Taudul
d7104c752a Cygwin compat layer. 2019-08-16 21:16:04 +02:00
Bartosz Taudul
819ef2a82b External process/thread name retrieval on linux. 2019-08-16 21:00:42 +02:00
Bartosz Taudul
e975c4d7bf Also retrieve external thread names. 2019-08-16 19:49:16 +02:00
Bartosz Taudul
fe7f56b022 Implement retrieval of external process names. 2019-08-16 19:22:23 +02:00
Bartosz Taudul
83fddd9aa6 Fix unicode builds. 2019-08-16 13:09:27 +02:00
Bartosz Taudul
9d5240c597 Mutable char array is required here due to shit API design. 2019-08-16 13:03:20 +02:00
Bartosz Taudul
14a373a3b8 Add number of CPU cores to host info. 2019-08-15 02:28:35 +02:00
Bartosz Taudul
69077e4e6f Finish sending context switches during disconnect. 2019-08-14 23:06:13 +02:00
Bartosz Taudul
6dc79cf14e Cosmetics. 2019-08-14 23:05:58 +02:00
Bartosz Taudul
c0b524d8de Add a separate method for clearing serial queue. 2019-08-14 22:39:12 +02:00
Bartosz Taudul
71b54dd48a Always collect thread names. 
This fixes an issue when a thread was destroyed before its name could be
retrieved.
 2019-08-14 16:52:04 +02:00
Bartosz Taudul
5e199d1ab3 Support ftrace on ARM. 2019-08-14 16:28:54 +02:00
Bartosz Taudul
5fbb811f5d Degrade ARM timer to monotonic raw clock. 
The monotonic raw clock has the same accuracy as reading cntvct registers, but
using clock_gettime() has a measurable impact on queueing time (135 us vs
83 us).

This change is needed to enable ftrace time readings on ARM linux, which
doesn't provide any way to get raw cntvct readings, like x86-tsc on x86.
 2019-08-14 16:19:02 +02:00
Bartosz Taudul
42865d7c7b Don't set x86-tsc clock on non-x86 platforms. 2019-08-14 15:14:36 +02:00
Bartosz Taudul
54a9132bb5 Skip context switch events in on demand mode, if no connection. 2019-08-14 15:09:33 +02:00
Bartosz Taudul
602c38c6c0 Allow checking timer implementation. 2019-08-14 14:35:44 +02:00
Bartosz Taudul
3988b56c92 Capture context switches on linux. 2019-08-14 13:56:15 +02:00
Bartosz Taudul
92b6da7cc2 SetThreadName() only works on the current thread. 
This breaking change is required, because kernel trace facilities use
kernel thread ids, which are inaccessible from the pthread_t level.
 2019-08-14 02:22:45 +02:00
Bartosz Taudul
73cbf2eead Use windows thread ids on cygwin. 2019-08-13 16:22:58 +02:00
Bartosz Taudul
b313e46139 Keep event trace properties to terminate trace on exit. 2019-08-13 13:10:37 +02:00
Bartosz Taudul
90d26cb1b6 Collect and send context switch events. 2019-08-13 02:35:32 +02:00
Bartosz Taudul
fe0f1aea07 Add system tracing skeleton. 2019-08-12 23:05:34 +02:00
Bartosz Taudul
8aa0be39d5 Drop support for CPU id queries. 2019-08-12 23:05:34 +02:00
Bartosz Taudul
d6f32a0839 Serialize lock processing. 
This makes is much easier to process on the server and opens new
optimization possibilities. It also fixes theoretical problems, which
may be caused by invalid ordering of events with the same timestamp.
 2019-08-12 13:51:01 +02:00
Bartosz Taudul
0431c03556 Add serial queue interface. 2019-08-12 13:27:15 +02:00
Bartosz Taudul
4d2c7899ab Allow skipping invariant TSC check. 2019-08-08 19:21:39 +02:00
Bartosz Taudul
3a221dafde Display error messages on console, if available. 2019-08-08 19:18:05 +02:00
Bartosz Taudul
aada588129 Proper buffer reset. 2019-08-04 17:48:19 +02:00
Rokas Kupstys
b391e4c21a Fix multiple build errors when compiling with MinGW. 2019-08-04 15:49:46 +03:00
Bartosz Taudul
12969ee497 Track thread context. 
This change exploits the fact that events are processed in batches
originating from a single thread. A single message changing thread
context is enough to handle multiple messages, as opposed to inclusion
of thread identifier in each message.
 2019-08-02 20:18:08 +02:00
Bartosz Taudul
a4e7a341c0 Proper handling of disconnect request. 2019-08-01 23:14:09 +02:00
Bartosz Taudul
ca3571fd2b Still more. 2019-07-30 01:30:31 +02:00
Bartosz Taudul
47423e6263 And more. 2019-07-30 01:29:13 +02:00
Bartosz Taudul
d3783ae359 Remove magic template syntax. 2019-07-30 01:28:21 +02:00
Bartosz Taudul
9c28b82954 RPMallocInit and RPMallocThreadInit are identical. 2019-07-30 01:15:14 +02:00
Bartosz Taudul
a6a3f45810 Fill in thread id during dequeue, not during enqueue. 2019-07-30 01:15:14 +02:00
Bartosz Taudul
142ef53b42 Dequeue items from a single thread. 2019-07-29 23:44:08 +02:00
Bartosz Taudul
c7f769c52b Allow dequeuing from a single producer, retrieving thread id. 2019-07-29 23:29:30 +02:00
Bartosz Taudul
6cad76ae67 Store thread id in queue producer. 2019-07-29 23:13:06 +02:00
Bartosz Taudul
7ae9a28e32 Drop BlockingConcurrentQueue. 2019-07-29 22:58:13 +02:00