search for: exegesis

Displaying 20 results from an estimated 28 matches for "exegesis".

2018 Aug 14
4
llvm-exegesis
Hi everyone, Can someone help me with running llvm-exegesis tool on x86_64? I saw that I need libpfm library, but I'm still getting segmentation fault when I try to run the tool. Is there anything else I need to do (build llvm on some specific way) ? This is how I tried to run this tool: llvm-exegesis -mode=latency -opcode-name=ADD64rr Thanks, Luka ---...
2019 Dec 17
2
[llvm-exegesis] Uops mode isnćt working
Hello, I've been testing llvm-exegesis on X86. Latency and inverse_throughput modes work fine but when I run uops I get an error: event not found - cannot create event uops_dispatched_port:port_0 LLVM ERROR: invalid perf event 'uops_dispatched_port:port_0' I'm running this on a i7-4790K. Am I missing something on my comput...
2018 Mar 15
5
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
.... For people familiar with the work of Agner Fog, this is essentially an automation of the process of building the code snippets using instruction descriptions from LLVM. Results - Solving this bug <https://bugs.llvm.org/show_bug.cgi?id=36084> (sandybridge): > llvm-exegesis -opcode-name IMUL16rri8 -benchmark-mode latency --- asm_template: name: latency IMUL16rri8 cpu_name: sandybridge llvm_triple: x86_64-grtev4-linux-gnu num_repetitions: 10000 measurements: - { key: latency, value: 4.0115, debug_string: '' } error: ...
2018 Mar 15
0
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
...essentially an > automation of the process of building the code snippets using > instruction descriptions from LLVM. > > > Results > > * > > Solving this bug > <https://bugs.llvm.org/show_bug.cgi?id=36084>(sandybridge): > > > llvm-exegesis -opcode-name IMUL16rri8 -benchmark-mode latency > > --- > > asm_template:     > >  name:            latency IMUL16rri8 > > cpu_name:        sandybridge > > llvm_triple:     x86_64-grtev4-linux-gnu > > num_repetitions: 10000 > > measurements:     > >  ...
2018 Mar 15
0
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
...ssentially an > automation of the process of building the code snippets using > instruction descriptions from LLVM. > > > Results > > * > > Solving this bug > <https://bugs.llvm.org/show_bug.cgi?id=36084>(sandybridge): > > > llvm-exegesis -opcode-name IMUL16rri8 -benchmark-mode latency > > --- > > asm_template: > >  name:            latency IMUL16rri8 > > cpu_name:        sandybridge > > llvm_triple:     x86_64-grtev4-linux-gnu > > num_repetitions: 10000 > > measurements: > >  - { key:...
2020 Jan 16
2
[llvm-exegesis]?==?utf-8?q? [RFC] Renaming Uops- classes
Since the option of running -mode=inverse_throughput was added to llvm-exegesis the names of classes like UopsSnippetGenerator and UopsBenchmarkRunner, that this mode shares with uops, started to be less descriptive. Inverse_throughput doesn't use the uops counters, so for example, the instruction layout shared between these two modes is really connected to parallelism, n...
2018 Mar 15
3
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
...og, this is essentially an > automation of the process of building the code snippets using instruction > descriptions from LLVM. > Results > > - > > Solving this bug <https://bugs.llvm.org/show_bug.cgi?id=36084> > (sandybridge): > > > llvm-exegesis -opcode-name IMUL16rri8 -benchmark-mode latency > > --- > > asm_template: > > name: latency IMUL16rri8 > > cpu_name: sandybridge > > llvm_triple: x86_64-grtev4-linux-gnu > > num_repetitions: 10000 > > measurements: > > - { key:...
2018 Mar 15
0
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
...>> snippets using instruction descriptions from LLVM. >> >> >> Results >> >> * >> >> Solving this bug >> <https://bugs.llvm.org/show_bug.cgi?id=36084>(sandybridge): >> >> > llvm-exegesis -opcode-name IMUL16rri8 -benchmark-mode latency >> >> --- >> >> asm_template:     >> >>  name:            latency IMUL16rri8 >> >> cpu_name:        sandybridge >> >> llvm_triple:     x86_64-grtev4-linux-gnu >> &gt...
2020 Jan 16
2
[RFC] Implementing the BHive methodology in llvm-exegesis
Hi all, In a recent IISWC paper <http://groups.csail.mit.edu/commit/papers/19/ithemal-measurement.pdf>, we've proposed BHive - a new methodology for benchmarking arbitrary basic blocks that has several advantages over the one currently used in llvm-exegesis. In particular, the new methodology: - automatically handles memory accesses in the basic block, without the need to manually annotate live-ins, - maps all memory addresses accessed by the basic block to the same page, significantly reducing the probability of cache misses during benchmarking, - th...
2018 Mar 15
1
[RFC] llvm-exegesis: Automatic Measurement of Instruction Latency/Uops
I am, of course, a huge fan of this effort. :) > >> >> - >> >> [??] Make the tool work for other CPUs. This mainly depends on the >> presence of performance counters. >> >> Having these requirements documented will be great. In particular, it's important to document what kind of functionality we need out of the PMU rather than any
2018 Apr 18
2
Add llvm-mca to CODE_OWNERS.TXT
Please can we add a code owner entry for llvm-mca, which should probably be Andrea. I wasn't sure if we need to go through a full nomination process for new tools like this (and llvm-exegesis?) or we can just add the primary contributor to the CODE_OWNERS.TXT list immediately. Thanks, Simon.
2018 Sep 19
5
LLVM 7.0.0 Release
...offloading to NVPTX, OpenCL C++ support, MSan, X-Ray and libFuzzer support for FreeBSD, early UBSan, X-Ray and libFuzzer support for OpenBSD, UBSan checks for implicit conversions, many long-tail compatibility issues fixed in lld which is now production ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and diagtool. And as usual, many optimizations, improved diagnostics, and bug fixes. For more details, see the release notes: https://llvm.org/releases/7.0.0/docs/ReleaseNotes.html https://llvm.org/releases/7.0.0/tools/clang/docs/Re...
2018 Sep 19
5
LLVM 7.0.0 Release
...offloading to NVPTX, OpenCL C++ support, MSan, X-Ray and libFuzzer support for FreeBSD, early UBSan, X-Ray and libFuzzer support for OpenBSD, UBSan checks for implicit conversions, many long-tail compatibility issues fixed in lld which is now production ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and diagtool. And as usual, many optimizations, improved diagnostics, and bug fixes. For more details, see the release notes: https://llvm.org/releases/7.0.0/docs/ReleaseNotes.html https://llvm.org/releases/7.0.0/tools/clang/docs/Re...
2018 Apr 19
0
Add llvm-mca to CODE_OWNERS.TXT
...18, 2018, at 5:07 AM, Simon Pilgrim via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Please can we add a code owner entry for llvm-mca, which should probably be Andrea. > > I wasn't sure if we need to go through a full nomination process for new tools like this (and llvm-exegesis?) or we can just add the primary contributor to the CODE_OWNERS.TXT list immediately. > > Thanks, Simon. > > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/...
2018 Sep 19
3
[lldb-dev] LLVM 7.0.0 Release
...MSan, X-Ray > > and libFuzzer support for FreeBSD, early UBSan, X-Ray and libFuzzer > > support for OpenBSD, UBSan checks for implicit conversions, many > > long-tail compatibility issues fixed in lld which is now production > > ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and > > diagtool. And as usual, many optimizations, improved diagnostics, and > > bug fixes. > > > > For more details, see the release notes: > > https://llvm.org/releases/7.0.0/docs/ReleaseNotes.html > > https://llvm.org...
2018 Sep 21
2
[lldb-dev] LLVM 7.0.0 Release
...nd libFuzzer support for FreeBSD, early UBSan, X-Ray and libFuzzer >>> > support for OpenBSD, UBSan checks for implicit conversions, many >>> > long-tail compatibility issues fixed in lld which is now production >>> > ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and >>> > diagtool. And as usual, many optimizations, improved diagnostics, and >>> > bug fixes. >>> > >>> > For more details, see the release notes: >>> > https://llvm.org/releases/7.0.0/docs/ReleaseNotes...
2018 Mar 19
0
LLVM Weekly - #220, Mar 19th 2018
...rg/pipermail/llvm-dev/2018-March/121871.html) on the size of Clang executables and the time taken to compile Clang since October 2015. Since then, total executable size grew by 43% and build time increased by 60%. * Guillaume Chatelet and Clement Courbet have posted an [RFC on llvm-exegesis](http://lists.llvm.org/pipermail/llvm-dev/2018-March/121814.html), a tool to automatically determine instruction scheduling properties (such as latency and the number of micro-ops). Feedback has been very positive so far, and Clement [explained](http://lists.llvm.org...
2018 Sep 27
2
[lldb-dev] LLVM 7.0.0 Release
...eeBSD, early UBSan, X-Ray and libFuzzer > >>>> > support for OpenBSD, UBSan checks for implicit conversions, many > >>>> > long-tail compatibility issues fixed in lld which is now production > >>>> > ready for ELF, COFF and MinGW, new tools llvm-exegesis, llvm-mca and > >>>> > diagtool. And as usual, many optimizations, improved diagnostics, and > >>>> > bug fixes. > >>>> > > >>>> > For more details, see the release notes: > >>>> > https://llvm.org/...
2019 Apr 30
6
Disk space and RAM requirements in docs
...get/Lanai/CMakeFiles/LLVMLanaiCodeGen.dir 93M build/lib/Target/Lanai/CMakeFiles 93M build/lib/MC 91M build/lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir 91M build/lib/Target/XCore/CMakeFiles 89M build/tools/llvm-exegesis 87M build/lib/Target/BPF/CMakeFiles/LLVMBPFCodeGen.dir 87M build/lib/Target/BPF/CMakeFiles 86M build/tools/clang/lib/Index/CMakeFiles/clangIndex.dir 86M build/tools/clang/lib/Index/CMakeFiles 86M build/tools...
2003 Aug 12
0
excellently
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