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gperftools
Main gperftools repository

C++ · 8978 stars
unwind-check
unwind-check is a static checker for x86-64 Linux unwind info.

C++ · 2 stars

Beginner friendly Everything

Open All

Use "GROUP" trick to make libprofiler.{a,so} alwaylink Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

gperftools/gperftools#1645 · Opened Sep 15, 2026
aarch64: SIGSEGV in libunwind _ULaarch64_step during tcmalloc::GetStackTrace (2.17.2 + libunwind 1.8.3) Open

Difficulty 5/5 Over a week Newbie friendliness 48/100

gperftools/gperftools#1644 · 6 comments · Opened Sep 13, 2026
Support for Mach-O binaries Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

gperftools/unwind-check#1 · 1 comment · Opened Sep 3, 2026
pprof reports only libraries, not functions Open

inactive-waiting-response

Difficulty 4/5 3-5 days Newbie friendliness 45/100

gperftools/gperftools#1631 · 7 comments · Opened Mar 4, 2026
Feature request: allow for multiple `hugetlbfs` mountpoints in `TCMALLOC_MEMFS_MALLOC_PATH` with different page sizes. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gperftools/gperftools#1625 · 1 comment · Opened Dec 6, 2025
Invalid paths for some hyperlinks in docs folder Open

inactive-waiting-response

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gperftools/gperftools#1613 · 5 comments · Opened Sep 15, 2025
Adding custom metadata at end of object Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

gperftools/gperftools#1598 · 2 comments · Opened Jun 15, 2025
CMake scripts has no install() directives Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

gperftools/gperftools#1576 · 9 comments · Opened Dec 13, 2024
[solaris] we don't deal with solaris' per-thread-ness of setitimer timers Open

enhancement porting

Difficulty 5/5 Over a week Newbie friendliness 25/100

gperftools/gperftools#1567 · 1 comment · Opened Oct 5, 2024
CPUPROFILE_FREQUENCY=1 causes timer_settime() to fail with EINVAL Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gperftools/gperftools#1562 · 1 comment · Opened Sep 26, 2024
some of our tests are flaky (was: FAIL: sampling_test src/tests/sampling_test.cc:122 Check failed: 50 <= percent) Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

gperftools/gperftools#1557 · 8 comments · Opened Sep 17, 2024
memfs sysallocator can't share fd across forking (was: SIGBUS error in child after parent performs allocation on Hugepages) Open

gperftools/gperftools#1538 · 18 comments · 1 assignee · Opened Jul 24, 2024
we should make from-ucontext backtracing work correctly across most implementations Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1526 · Opened Jun 12, 2024
MingW12.1.0,Windows8.1 undefined reference to WaitOnAddress, WakeByAddressAll,WakeByAddressSingle Open

porting

Difficulty 3/5 1-2 days Newbie friendliness 25/100

gperftools/gperftools#1500 · 1 comment · Opened Apr 4, 2024
Clarify the relationship between gperftools/src/tcmalloc and google/tcmalloc in the README Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

gperftools/gperftools#1496 · Opened Feb 22, 2024
[macOS] `gperftools` 2.15: some tests fail Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1477 · 8 comments · Opened Jan 9, 2024
We can turn our cpu profile dumping to be crash-only (was: empty cpu profile (profiling haproxy on fedora)) Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1475 · 5 comments · Opened Jan 7, 2024
xmallox-test benchmark 40x slower with tcmalloc than with glibc's malloc Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1448 · 1 comment · Opened Oct 3, 2023
link problem in tcmalloc_minimal when using Debug-override configuration using Visual Studio on windows. Open

windows

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1430 · 1 comment · Opened Sep 9, 2023
we should phread_atfork around all of our lock(s) (was: LLVM thread(s) hang after fork from the parent process) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

gperftools/gperftools#1425 · 2 comments · Opened Aug 30, 2023
cmake build fails few unit tests (was: 2.12.0: Tests fail if building with CMake) Open

cmake-support enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1422 · 1 comment · Opened Aug 28, 2023
CMake build produces different SOVERSION tags than autoconf Open

cmake-support enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1421 · 1 comment · Opened Aug 28, 2023
tcmalloc never returns memory to OS Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1382 · 6 comments · Opened Jan 12, 2023
How to release all freelists back to system? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1374 · Opened Nov 10, 2022
win32 patching shouldn't use as much stack (Was: Stack overflow caused by PatchAllModules() function) Open

enhancement porting trivial-to-contribute windows

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1365 · 1 comment · Opened Aug 14, 2022
tcmalloc crash bus error - central free list contains read-only address from code-segment Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gperftools/gperftools#1364 · 1 comment · Opened Aug 11, 2022
freebsd/arm64 lack GetPC support (was: WARNING: Could not find the PC. Will not try to compile libprofiler...) Open

enhancement porting trivial-to-contribute

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1362 · 1 comment · Opened Jul 25, 2022
freebsd: tcmalloc_both_unittest fails (was: Tests tcmalloc_minimal_unittest, tcm_asserts_unittest, tcmalloc_both_unittest, profiler_unittest.sh SEGV on FreeBSD) Open

enhancement porting

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1357 · 3 comments · Opened Jul 18, 2022
freebsd/armv{6,7} lacks cpu profiler support (was: Doesn't install libprofiler and related files on armv6, armv7) Open

enhancement porting trivial-to-contribute

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gperftools/gperftools#1355 · 8 comments · Opened Jul 12, 2022
why would memory-inuse by process(Resident set size) keeps increasing? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

gperftools/gperftools#1353 · 7 comments · Opened Jul 8, 2022
build for Android/x86_64 failed Open

inactive-waiting-response porting

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gperftools/gperftools#1318 · 15 comments · Opened Dec 24, 2021
Cases of 'Big' stack-usage Open

enhancement trivial-to-contribute

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1313 · 1 comment · Opened Oct 31, 2021
Support for per-cpu caching Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

gperftools/gperftools#1298 · 2 comments · Opened Aug 26, 2021
Profile is empty? Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gperftools/gperftools#1297 · 2 comments · Opened Aug 19, 2021
tcmalloc crashes, Attempt to free invalid pointer Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

gperftools/gperftools#1293 · 1 comment · Opened Aug 12, 2021
tc_malloc cause SIGBUS Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1287 · 4 comments · Opened Jul 23, 2021
[musl] backtracing through signal handler trampoline fails (was: Stacktrace_unittest fails on Alpine 3.12 docker) Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

gperftools/gperftools#1282 · 1 comment · 1 reaction · Opened Jun 17, 2021
provide build-time configuration for default stacktrace method (was: generic_fp stacktrace implementation is sometimes much slower than the x86 specific stacktrace implementation) Open

enhancement trivial-to-contribute

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gperftools/gperftools#1278 · 6 comments · Opened May 25, 2021
implement new stacktrace method that calls unw_backtrace (was: libunwind based backtracer appears to be much slower than the one from stacktrace_x86-inl.h) Open

enhancement trivial-to-contribute

Difficulty 5/5 Over a week Newbie friendliness 25/100

gperftools/gperftools#1277 · 8 comments · Opened May 19, 2021
tcmalloc cache too much memory Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1265 · 2 comments · Opened Apr 6, 2021
Error at Linking C executable with --whole-archive libtcmalloc_minimal.a Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

gperftools/gperftools#1262 · 2 comments · Opened Mar 16, 2021
How to find peak heap usage for a particular function in my C++ application ? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

gperftools/gperftools#1259 · Opened Mar 11, 2021
infinite loop in ReleaseFreeMemory Open

inactive-waiting-response

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1258 · 2 comments · Opened Mar 11, 2021
TCMalloc memfs, using hugepages and unmapping memory. Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

gperftools/gperftools#1237 · 5 comments · Opened Dec 17, 2020
Reserve VA range for huge pages when using the memfs allocator Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

gperftools/gperftools#1217 · 1 comment · Opened Sep 18, 2020
12 failures in check of gperftools-2.8 with OS X Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gperftools/gperftools#1205 · Opened Jul 28, 2020
gperftools doesn't provide convenient way to link to custom statically built libunwind (was: issue about libunwind) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1191 · 1 comment · Opened Apr 19, 2020
Why stats.metadata_bytes is not accounted in generic.heap_size Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gperftools/gperftools#1168 · 1 comment · Opened Jan 28, 2020
Insufficient control over RUNNING_IN_VALGRIND, should only be active with --tool=memcheck Open

alk-wants-this-soon

Difficulty 3/5 1-2 days Newbie friendliness 48/100

gperftools/gperftools#1167 · 12 comments · Opened Jan 23, 2020
Clean up deprecated warnings in MacOS builds Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

gperftools/gperftools#1154 · 1 comment · Opened Nov 18, 2019

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