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Revision tags: llvmorg-20.1.0, llvmorg-20.1.0-rc3, llvmorg-20.1.0-rc2, llvmorg-20.1.0-rc1, llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init |
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| #
a35480f8 |
| 13-Jul-2021 |
Vy Nguyen <[email protected]> |
[llvm-exegesis] Fix missing-headers build errors.
Details:
Switch all #includes to use <> because that is consistent with what happens in the cmake checks.
Otherwise, we could be in the situation w
[llvm-exegesis] Fix missing-headers build errors.
Details:
Switch all #includes to use <> because that is consistent with what happens in the cmake checks.
Otherwise, we could be in the situation where cmake checks see that headers exist at <perfmon/...>
but in llvm-exegesis code, we use "perfmon/...", which may not exist.
Related PR/revisions: D84076, PR51017+D105615
Differential Revision: https://reviews.llvm.org/D105861
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Revision tags: llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1 |
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| #
ee7caa75 |
| 27-Jul-2020 |
Vy Nguyen <[email protected]> |
Reland [llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements.
Starting with Skylake, the LBR contains the precise number of cycles between the two
Reland [llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements.
Starting with Skylake, the LBR contains the precise number of cycles between the two
consecutive branches.
Making use of this will hopefully make the measurements more precise than the
existing methods of using RDTSC.
Differential Revision: https://reviews.llvm.org/D77422
New change: check for existence of field `cycles` in perf_branch_entry before enabling this mode.
This should prevent compilation errors when building for older kernel whose headers don't support it.
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| #
6bddd099 |
| 17-Jul-2020 |
Clement Courbet <[email protected]> |
Revert "[llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements."
From @erichkeane:
```
This patch doesn't seem to build for me:
/iusers/ekeane1/workspaces/ll
Revert "[llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements."
From @erichkeane:
```
This patch doesn't seem to build for me:
/iusers/ekeane1/workspaces/llvm-project/llvm/tools/llvm-exegesis/lib/X86/X86Counter.cpp: In function ‘llvm::Error llvm::exegesis::parseDataBuffer(const char*, size_t, const void*, const void*, llvm::SmallVector<long int, 4>*)’:
/iusers/ekeane1/workspaces/llvm-project/llvm/tools/llvm-exegesis/lib/X86/X86Counter.cpp:99:37: error: ‘struct perf_branch_entry’ has no member named ‘cycles’
CycleArray->push_back(Entry.cycles);
I'm on RHEL7, so I have kernel 3.10, so it doesn't have 'cycles'.
According ot this: https://elixir.bootlin.com/linux/v4.3/source/include/uapi/linux/perf_event.h#L963 kernel 4.3 is the first time that 'cycles' appeared in this structure.
```
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Revision tags: llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2 |
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| #
1360e140 |
| 18-Jun-2020 |
Vy Nguyen <[email protected]> |
[llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements.
Starting with Skylake, the LBR contains the precise number of cycles between the two
consecut
[llvm-exegesis] Add benchmark latency option on X86 that uses LBR for more precise measurements.
Starting with Skylake, the LBR contains the precise number of cycles between the two
consecutive branches.
Making use of this will hopefully make the measurements more precise than the
existing methods of using RDTSC.
Differential Revision: https://reviews.llvm.org/D77422
show more ...
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| #
e086a39c |
| 25-Jun-2020 |
Vy Nguyen <[email protected]> |
[llvm-exegesis] Let Counter returns up to 16 entries
LBR contains (up to) 16 entries for last x branches and the X86LBRCounter (from D77422) should be able to return all those.
Currently, it
[llvm-exegesis] Let Counter returns up to 16 entries
LBR contains (up to) 16 entries for last x branches and the X86LBRCounter (from D77422) should be able to return all those.
Currently, it just returns the latest entry, which could lead to mis-leading measurements.
This patch aslo changes the LatencyBenchmarkRunner to accommodate multi-value readings.
https://reviews.llvm.org/D81050
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| #
cc8fafa2 |
| 27-May-2020 |
Vy Nguyen <[email protected]> |
[llvm-exegesis] Make a few counter methods virtual to allow targets to provide target-specific support.
Misc: Also include errno in failure message.
Differential Revision: https://reviews.llvm.org/D
[llvm-exegesis] Make a few counter methods virtual to allow targets to provide target-specific support.
Misc: Also include errno in failure message.
Differential Revision: https://reviews.llvm.org/D80610
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Revision tags: llvmorg-10.0.1-rc1 |
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| #
7c6514bc |
| 08-Apr-2020 |
Clement Courbet <[email protected]> |
[llvm-exegesis] Fix build with !HAS_LIBPFM.
Fixes 9fb871866e2b.
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| #
9fb87186 |
| 08-Apr-2020 |
Clement Courbet <[email protected]> |
[llvm-exegesis][NFC] Let the pfm::Counter own the PerfHelper.
A perf helper is always only ever cretaed to be checked for validity
then passed as Counter ctor argument, never to be touched again.
It
[llvm-exegesis][NFC] Let the pfm::Counter own the PerfHelper.
A perf helper is always only ever cretaed to be checked for validity
then passed as Counter ctor argument, never to be touched again.
Its lifetime should outlive that of the counter, and there is never any
reason to have two different counters of top of the perf helper.
Make sure these assumptions always hold by making the Counter consume the
PerfHelper.
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Revision tags: llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5, llvmorg-10.0.0-rc4, llvmorg-10.0.0-rc3, llvmorg-10.0.0-rc2, llvmorg-10.0.0-rc1, llvmorg-11-init, llvmorg-9.0.1, llvmorg-9.0.1-rc3, llvmorg-9.0.1-rc2, llvmorg-9.0.1-rc1 |
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| #
50cdd56b |
| 09-Oct-2019 |
Clement Courbet <[email protected]> |
[llvm-exegesis][NFC] Remove extra `llvm::` qualifications.
Summary: Second patch: in the lib.
Reviewers: gchatelet
Subscribers: nemanjai, tschuett, MaskRay, mgrang, jsji, llvm-commits
Tags: #llvm
[llvm-exegesis][NFC] Remove extra `llvm::` qualifications.
Summary: Second patch: in the lib.
Reviewers: gchatelet
Subscribers: nemanjai, tschuett, MaskRay, mgrang, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68692
llvm-svn: 374158
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Revision tags: llvmorg-9.0.0, llvmorg-9.0.0-rc6, llvmorg-9.0.0-rc5, llvmorg-9.0.0-rc4, llvmorg-9.0.0-rc3, llvmorg-9.0.0-rc2, llvmorg-9.0.0-rc1, llvmorg-10-init, llvmorg-8.0.1, llvmorg-8.0.1-rc4, llvmorg-8.0.1-rc3, llvmorg-8.0.1-rc2, llvmorg-8.0.1-rc1, llvmorg-8.0.0, llvmorg-8.0.0-rc5, llvmorg-8.0.0-rc4, llvmorg-8.0.0-rc3, llvmorg-7.1.0, llvmorg-7.1.0-rc1, llvmorg-8.0.0-rc2, llvmorg-8.0.0-rc1 |
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| #
2946cd70 |
| 19-Jan-2019 |
Chandler Carruth <[email protected]> |
Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the ne
Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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Revision tags: llvmorg-7.0.1, llvmorg-7.0.1-rc3, llvmorg-7.0.1-rc2, llvmorg-7.0.1-rc1 |
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| #
32401afd |
| 22-Oct-2018 |
Fangrui Song <[email protected]> |
[llvm-exegesis] Move namespace exegesis inside llvm::
Summary:
This allows simplifying references of llvm::foo with foo when the needs
come in the future.
Reviewers: courbet, gchatelet
Reviewed By
[llvm-exegesis] Move namespace exegesis inside llvm::
Summary:
This allows simplifying references of llvm::foo with foo when the needs
come in the future.
Reviewers: courbet, gchatelet
Reviewed By: gchatelet
Subscribers: javed.absar, tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D53455
llvm-svn: 344922
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Revision tags: llvmorg-7.0.0, llvmorg-7.0.0-rc3, llvmorg-7.0.0-rc2, llvmorg-7.0.0-rc1, llvmorg-6.0.1, llvmorg-6.0.1-rc3, llvmorg-6.0.1-rc2 |
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| #
71d4afb9 |
| 31-May-2018 |
Roman Lebedev <[email protected]> |
[llvm-exegesis][NFCI] Counter::Counter(): more useful msg on event open error
Summary:
I'm slowly looking into a new X86 scheduler model,
for AMD Bulldozer CPU, model 2 (bdver2, Piledriver).
And na
[llvm-exegesis][NFCI] Counter::Counter(): more useful msg on event open error
Summary:
I'm slowly looking into a new X86 scheduler model,
for AMD Bulldozer CPU, model 2 (bdver2, Piledriver).
And naturally, i have hit that assert :)
I happened to know what it meant, and how to fix it,
but that is not too common knowledge.
Reviewers: courbet, RKSimon
Reviewed By: courbet
Subscribers: tschuett, llvm-commits, craig.topper
Differential Revision: https://reviews.llvm.org/D47572
llvm-svn: 333632
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| #
27d4ca2d |
| 15-May-2018 |
Clement Courbet <[email protected]> |
[llvm-exegesis] Check perf event validity.
This was part of https://reviews.llvm.org/D46821.
Authored by Guillaume Chatelet
llvm-svn: 332330
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| #
dcfa908b |
| 18-Apr-2018 |
Simon Pilgrim <[email protected]> |
[llvm-exegesis] Put a newline at the end of each error report.
Makes multiple error messages much easier to read.
llvm-svn: 330258
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Revision tags: llvmorg-6.0.1-rc1 |
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| #
bc89a781 |
| 07-Apr-2018 |
Simon Pilgrim <[email protected]> |
[llvm-exegesis] Fix unused return value warning and add a useful error message for event counter reads.
llvm-svn: 329496
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| #
804997ab |
| 04-Apr-2018 |
Clement Courbet <[email protected]> |
[llvm-exegesis] Do not initialize FileDescriptor when libpfm is not
available.
llvm-svn: 329177
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| #
ac74acde |
| 04-Apr-2018 |
Clement Courbet <[email protected]> |
Re-land r329156 "Add llvm-exegesis tool."
Fixed to depend on and initialize the native target instead of X86.
llvm-svn: 329169
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| #
7287b2c1 |
| 04-Apr-2018 |
Clement Courbet <[email protected]> |
Add llvm-exegesis tool.
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops
This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction
Add llvm-exegesis tool.
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops
This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops".
The RFC is available on the LLVM mailing lists as well as the following document
for easier reading:
https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing
Subscribers: mgorny, gchatelet, orwant, llvm-commits
Differential Revision: https://reviews.llvm.org/D44519
llvm-svn: 329156
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