This patch adds support for recording BuildIds usng the sanitizer
ListOfModules API. We add another entry to the SegmentEntry struct and
change the memprof raw version.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D145190
This patch adds support for recording BuildIds usng the sanitizer
ListOfModules API. We add another entry to the SegmentEntry struct and
change the memprof raw version.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D145190
The memprof profiles and binaries need to be updated in case of version
updates. This change adds three scripts for llvm-profdata, clang and
llvm tests where memprof profiles are used as inputs. Also update the
tests, profiles and binaries in this change. Change based on the review
suggestions in D145023.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D145644
This change replaces the binary profiles and executables used for
testing the memprof profile reader with tests where the profiles are
generated on the fly. This reduces toil when the profile version
changes. The tests are moved from tools/llvm-profdata to
compiler-rt/test/memprof due to the following reasons:
1. Adding dependency on memprof lit.cfg.py for llvm-profdata is
preferable to adding a dependency on compiler-rt for llvm/test.
2. All the tests can now be run with `ninja check-memprof`.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D145023
Track min/max/avg access density (accesses per byte and accesses per
byte per lifetime second) metrics directly during profiling. This allows
more accurate use of these metrics in profile analysis and use, instead
of trying to compute them from already aggregated data in the profile.
This required regenerating some of the raw profile and executable inputs
for a few tests. While here, make the llvm-profdata memprof tests more
resilient to differences in things like memory mapping, timestamps and
cpu ids to make future test updates easier.
Differential Revision: https://reviews.llvm.org/D141558
Until we have symbolization for position independent code lets update
this documentation since clang now defaults to position independent
code.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D127808
This change prints out the segment information in the raw profile in
YAML format for testing. Since we don't capture build ids yet, we print
out <None> for now.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D126840
Update the YAML format print out of the profile to include a summary
instead of displaying the headers in the raw file buffer. This allows us
to release the raw buffer early saving memory.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D126834
Extend the Frame struct to hold the symbol name if requested
when a RawMemProfReader object is constructed. This change updates the
tests and removes the need to pass --debug to obtain the mapping from
GUID to symbol names.
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D126344
This reverts commit 0d362c90d335509c57c0fbd01ae1829e2b9c3765.
Reason: Causes the MSan buildbot to fail (see comments on
https://reviews.llvm.org/D121179 for more information
To ease profile annotation, each of the callsites in a function can be
annotated with profile data - "IR metadata format for MemProf" [1]. This
patch extends the on-disk serialized record format to store the debug
information for allocation callsites incl inline frames. This change is
incompatible with the existing format i.e. indexed profiles must be
regenerated, raw profiles are unaffected.
[1] https://groups.google.com/g/llvm-dev/c/aWHsdMxKAfE/m/WtEmRqyhAgAJ
Reviewed By: tejohnson
Differential Revision: https://reviews.llvm.org/D121179
We add to ensure that we are observing the correct callstack order in memprof
during symbolization. There was some confusion whether the order of
DIFrame objects were reversed but in reality the leaf function is at
index 0 so no code changes are required.
Differential Revision: https://reviews.llvm.org/D121759
