[PING] [PATCH v2 0/7] gdb.perf/: Add JIT performance test
Ilya Leoshkevich
iii@linux.ibm.com
Wed Jun 22 08:48:28 GMT 2022
On Tue, 2022-05-31 at 00:11 +0200, Ilya Leoshkevich wrote:
> Hi,
>
> This series implements a JIT performance test as discussed in [1].
> Patch 1 is a small fix, patches 2-6 are preparations and patch 7 is
> the test itself.
>
> ChangeLog:
> v1: https://sourceware.org/pipermail/gdb-patches/2022-May/189427.html
> v1 -> v2:
> * Make sure shared objects contain virtual addresses they are loaded
> at by reusing parts of jit-elf-helpers.exp. By default, virtual
> addresses in all shared objects are relative to 0 - this creates a
> lots of overlaps and forces sort_cmp () to go through the slow
> "Sort
> on sequence number of the objfile in the chain" path, which is not
> a
> useful performance testing scenario.
> * Fix DEFAULT_BINARY_LINK_WITH_SHLIBS style (Andrew).
> * Rename SHLIB to TOTAL_NR_SHLIBS (Andrew).
> * Add SOLIB_COUNT (Andrew).
> * Drop "gdb.perf/: Compile the binary with -DSHLIB", it's superseded
> by
> "Allow adjusting GenPerfTest compile options".
>
> The test can be used as follows:
>
> $ make build-perf -j"$(nproc)" RUNTESTFLAGS=jit.exp
> $ make check-perf RUNTESTFLAGS=jit-check.exp GDB_PERFTEST_MODE=run
>
> The results can be converted to gnuplot-friendly format as follows:
>
> $ perl -ne 'if (/:register_times:(\d+) (.+)/) { print "$1 $2\n"; }' \
> <gdb.perf/outputs/jit/pieces/perftest.sum >jit.txt
>
> I've uploaded the results to [2]. They are similar to the ones from
> Andrew and show that [1] is an improvement. The third result shown
> on
> the chart is from [3] - with it I can pass the 10k JITed objects mark
> and debug CoreCLR JIT with GDB. It's still WIP though - the
> testsuite
> shows a couple of failures.
>
> Best regards,
> Ilya
>
> [1] https://sourceware.org/pipermail/gdb-patches/2022-May/189341.html
> [2]
> https://github.com/iii-i/binutils-gdb/blob/section-map-20220530-2/gdb/testsuite/jit.png
> [3]
> https://github.com/iii-i/binutils-gdb/commits/section-map-20220530-2
>
> Ilya Leoshkevich (7):
> gdb.perf/: Fix tcl_string_list_to_python_list {x}
> gdb.perf/: Add binary_link_with_shlibs setting to GenPerfTest
> gdb.perf/: Allow adjusting GenPerfTest compile options
> gdb.base/: Introduce jit-protocol-util.h
> gdb.base/: Introduce jit_compile_options
> gdb.base/: Introduce n_jit_so_address
> gdb.perf/: Add JIT performance test
>
> gdb/testsuite/gdb.base/jit-elf-fork-main.c | 48 ++----------
> gdb/testsuite/gdb.base/jit-elf-main.c | 48 ++----------
> gdb/testsuite/gdb.base/jit-elf-util.h | 17 +++++
> gdb/testsuite/gdb.base/jit-protocol-util.h | 74 ++++++++++++++++++
> gdb/testsuite/gdb.base/jit-reader-host.c | 8 +-
> gdb/testsuite/gdb.perf/jit-check.exp | 25 +++++++
> gdb/testsuite/gdb.perf/jit-check.py | 60 +++++++++++++++
> gdb/testsuite/gdb.perf/jit-solib.c | 27 +++++++
> gdb/testsuite/gdb.perf/jit.c | 87
> ++++++++++++++++++++++
> gdb/testsuite/gdb.perf/jit.exp | 79 ++++++++++++++++++++
> gdb/testsuite/lib/gen-perf-test.exp | 54 +++++++++++---
> gdb/testsuite/lib/jit-elf-helpers.exp | 22 ++++--
> gdb/testsuite/lib/perftest.exp | 2 +-
> 13 files changed, 439 insertions(+), 112 deletions(-)
> create mode 100644 gdb/testsuite/gdb.base/jit-protocol-util.h
> create mode 100644 gdb/testsuite/gdb.perf/jit-check.exp
> create mode 100644 gdb/testsuite/gdb.perf/jit-check.py
> create mode 100644 gdb/testsuite/gdb.perf/jit-solib.c
> create mode 100644 gdb/testsuite/gdb.perf/jit.c
> create mode 100644 gdb/testsuite/gdb.perf/jit.exp
>
Hi,
is there anything else that needs to be adjusted here?
Best regards,
Ilya
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