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2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
2023-04-17Benchtests: Adjust timingWilco Dijkstra1-1/+1
Adjust iteration counts so benchmarks don't run too slowly or quickly. Ensure benchmarks take less than 10 seconds on older, slower cores and more than 0.5 seconds on fast cores. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers1-1/+1
2022-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2021-11-06benchtests: Add additional cases to bench-memcpy.c and bench-memmove.cNoah Goldstein1-6/+43
This commit adds more benchmarks for the common memcpy/memmove benchmarks. The most signifcant cases are the half page offsets. The current versions leaves dst and src near page aligned which leads to false 4k aliasing on x86_64. This can add noise due to false dependencies from one run to the next. As well, this seems like more of an edge case that common case so it shouldn't be the only thing Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com> Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2021-05-23Bench: Add support for choose direction of memcpy in benchtestsNoah Goldstein1-34/+42
This patch adds support for testing memcpy with both dst > src and dst < src. Since memcpy is implemented as memmove which has seperate control flows for certain sizes depending on dst > src it seems like 1) information that should be provided in the benchtest output and a variable that can be controlled for the benchmarks. Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
2021-05-03bench-memcpy: Collect data from 2KB to 4KBH.J. Lu1-0/+8
Collect data on memcpy from 2KB to 4KB with the 64-byte increment value.
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert1-1/+1
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-08-30Use generic memset/memcpy/memmove in benchtestsWilco Dijkstra1-10/+9
Use the generic C memset/memcpy/memmove in benchtests since comparing against a slow byte-oriented implementation makes no sense. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> 2019-08-29 Wilco Dijkstra <wdijkstr@arm.com> * benchtests/bench-memcpy.c (simple_memcpy): Remove. (generic_memcpy): Include generic C memcpy. * benchtests/bench-memmove.c (simple_memmove): Remove. (generic_memmove): Include generic C memmove. * benchtests/bench-memset.c (simple_memset): Remove. (generic_memset): Include generic C memset. * benchtests/bench-memset-large.c (simple_memset): Remove. (generic_memset): Include generic C memset. * benchtests/bench-memset-walk.c (simple_memset): Remove. (generic_memset): Include generic C memset. * string/memcpy.c (MEMCPY): Add defines to enable redirection. * string/memset.c (MEMSET): Likewise. * sysdeps/x86_64/memcopy.h: Remove empty file.
2019-02-12String benchtest cleanupWilco Dijkstra1-12/+3
Continue cleanup of the string benchtests. Remove simplistic byte-oriented versions with faster generic implementations. Remove bcopy/bzero benchmarks (bcopy/bzero are obsolete and never emitted by compilers). Remove builtin versions of memcpy, memset and strlen. Remove all remaining "stupid" implementations given they are always slower than the "simple" variants and thus don't add anything useful. * benchtests/bench-strcasecmp.c (stupid_strcasecmp): Remove. * benchtests/bench-strcasestr.c (stupid_strcasestr): Remove. * benchtests/bench-strchr.c (stupid_strchr): Remove. * benchtests/bench-strcmp.c (stupid_strcmp): Remove. * benchtests/bench-strcspn.c (stupid_strcspn): Remove. * benchtests/bench-strlen.c (builtin_strlen): Remove. * benchtests/bench-strncasecmp.c (stupid_strncasecmp): Remove. * benchtests/bench-strncmp.c (stupid_strncmp): Remove. * benchtests/bench-strpbrk.c (stupid_strpbrk): Remove. * benchtests/bench-strspn.c (stupid_strspn): Remove. * benchtests/Makefile: Remove bench-bcopy.c and bench-bzero.c. * benchtests/bench-bcopy.c: Delete file. * benchtests/bench-bzero.c: Likewise. * benchtests/bench-memccpy.c (stupid_memccpy): Remove. (simple_memccpy): Remove. (generic_memccpy): Add function. * benchtests/bench-memcpy.c: (builtin_memcpy): Remove. * benchtests/bench-memmove.c (simple_bcopy): Remove. * benchtests/bench-mempcpy.c (simple_mempcpy): Remove. (generic_mempcpy): Add new function. * benchtests/bench-memset.c (simple_bzero): Remove. (builtin_bzero): Remove. (builtin_memset): Remove. * benchtests/bench-rawmemchr.c (simple_rawmemchr): Remove. (generic_rawmemchr): Add new function.
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2017-08-11benchtests: Remove verification runs from benchmark testsSiddhesh Poyarekar1-20/+0
The test run is unnecessary and interferes with the benchmark. The tests are done during make check, so they're unnecessary here. * benchtests/bench-memccpy.c (do_one_test): Remove checks. * benchtests/bench-memchr.c (do_one_test): Likewise. * benchtests/bench-memcpy-large.c (do_one_test): Likewise. * benchtests/bench-memcpy.c (do_one_test): Likewise. * benchtests/bench-memmove-large.c (do_one_test): Likewise. * benchtests/bench-memmove.c (do_one_test): Likewise. * benchtests/bench-memset-large.c (do_one_test): Likewise. * benchtests/bench-memset.c (do_one_test): Likewise. * benchtests/bench-string.h (test_init): Remove memsets.
2017-08-08benchtests: Use TEST_NAME instead of hardcoding memcpySiddhesh Poyarekar1-1/+1
The hardcoded 'memcpy' name turns up in other derived tests like mempcpy. * benchtests/bench-memcpy.c (test_main): Use TEST_NAME instead of hardcoding memcpy. * benchtests/bench-memcpy-large.c (test_name): Likewise. * benchtests/bench-memcpy-random.c (test_name): Likewise.
2017-06-22benchtests: Make memcpy benchmarks print results in jsonSiddhesh Poyarekar1-26/+49
Print the benchmark output for various memcpy benchmarks in json so that it can be predictably parsed and analyzed. * benchtests/bench-memcpy-large.c: Include json-lib.h. (do_one_test): Print json. (do_test): Likewise. (test_main): Likewise. * benchtests/bench-memcpy-random.c: Include json-lib.h. (do_one_test): Print json. (do_test): Likewise. (test_main): Likewise. * benchtests/bench-memcpy.c: Include json-lib.h. (do_one_test): Print json. (do_test): Likewise. (test_main): Likewise.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2016-12-19Adjust benchtests to new support library.Adhemerval Zanella1-1/+1
This patch basically replaces the test-skeleton.c inclusion by support/test-driver.c and also minor adjustments in bench-string.h. Checked on x86_64-linux-gnu and powerpc64le-linux-gnu. * benchtests/bench-string.h (TEST_FUNCTION): Use name without parenthesis. (CMDLINE_PROCESS): Define using function instead of macro. * benchtests/bench-memccpy.c: Include <support/test-driver.c> instead of test-skeleton. * benchtests/bench-memchr.c: Likewise. * benchtests/bench-memcmp.c: Likewise. * benchtests/bench-memcpy-large.c: Likewise. * benchtests/bench-memcpy.c: Likewise. * benchtests/bench-memmem.c: Likewise. * benchtests/bench-memmove-large.c: Likewise. * benchtests/bench-memmove.c: Likewise. * benchtests/bench-memset-large.c: Likewise. * benchtests/bench-memset.c: Likewise. * benchtests/bench-rawmemchr.c: Likewise. * benchtests/bench-strcasecmp.c: Likewise. * benchtests/bench-strcasestr.c: Likewise. * benchtests/bench-strcat.c: Likewise. * benchtests/bench-strchr.c: Likewise. * benchtests/bench-strcmp.c: Likewise. * benchtests/bench-strcpy.c: Likewise. * benchtests/bench-strcpy_chk.c: Likewise. * benchtests/bench-strlen.c: Likewise. * benchtests/bench-strncasecmp.c: Likewise. * benchtests/bench-strncmp.c: Likewise. * benchtests/bench-strncpy.c: Likewise. * benchtests/bench-strnlen.c: Likewise. * benchtests/bench-strpbrk.c: Likewise. * benchtests/bench-strrchr.c: Likewise. * benchtests/bench-strsep.c: Likewise. * benchtests/bench-strspn.c: Likewise. * benchtests/bench-strstr.c: Likewise. * benchtests/bench-strtok.c: Likewise.
2016-05-18Clear destination buffer updated by the previous runH.J. Lu1-0/+4
Clear the destination buffer updated by the previous run in bench-memcpy.c and test-memcpy.c to catch the error when the following implementations do not copy anything. [BZ #19907] * benchtests/bench-memcpy.c (do_one_test): Clear the destination buffer updated by the previous run. * string/test-memcpy.c (do_one_test): Likewise. * benchtests/bench-memmove.c (do_one_test): Add a comment. * string/test-memmove.c (do_one_test): Likewise.
2016-04-01Test 64-byte alignment in memcpy benchtestH.J. Lu1-0/+8
Add 64-byte alignment tests in memcpy benchtest for 64-byte vector registers. * benchtests/bench-memcpy.c (test_main): Test 64-byte alignment.
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae1-1/+1
2013-09-04benchtests: Switch string benchmarks to use bench-timing.h.Will Newton1-19/+13
Switch the string benchmarks to using bench-timing.h instead of hp-timing.h directly. This allows the string benchmarks to be run usefully on architectures such as ARM that do not have support for hp-timing.h. In order to do this the tests have been changed from timing each individual call and picking the lowest execution time recorded to timing a number of calls and taking the mean execution time. ChangeLog: 2013-09-04 Will Newton <will.newton@linaro.org> * benchtests/bench-timing.h (TIMING_PRINT_MEAN): New macro. * benchtests/bench-string.h: Include bench-timing.h instead of including hp-timing.h directly. (INNER_LOOP_ITERS): New define. (HP_TIMING_BEST): Delete macro. (test_init): Remove call to HP_TIMING_DIFF_INIT. * benchtests/bench-memccpy.c: Use bench-timing.h macros instead of hp-timing.h macros. * benchtests/bench-memchr.c: Likewise. * benchtests/bench-memcmp.c: Likewise. * benchtests/bench-memcpy.c: Likewise. * benchtests/bench-memmem.c: Likewise. * benchtests/bench-memmove.c: Likewise. * benchtests/bench-memset.c: Likewise. * benchtests/bench-rawmemchr.c: Likewise. * benchtests/bench-strcasecmp.c: Likewise. * benchtests/bench-strcasestr.c: Likewise. * benchtests/bench-strcat.c: Likewise. * benchtests/bench-strchr.c: Likewise. * benchtests/bench-strcmp.c: Likewise. * benchtests/bench-strcpy.c: Likewise. * benchtests/bench-strcpy_chk.c: Likewise. * benchtests/bench-strlen.c: Likewise. * benchtests/bench-strncasecmp.c: Likewise. * benchtests/bench-strncat.c: Likewise. * benchtests/bench-strncmp.c: Likewise. * benchtests/bench-strncpy.c: Likewise. * benchtests/bench-strnlen.c: Likewise. * benchtests/bench-strpbrk.c: Likewise. * benchtests/bench-strrchr.c: Likewise. * benchtests/bench-strspn.c: Likewise. * benchtests/bench-strstr.c: Likewise.
2013-06-11Begin porting string performance tests to benchtestsSiddhesh Poyarekar1-0/+163
This is the initial support for string function performance tests, along with copying tests for memcpy and memcpy-ifunc as proof of concept. The string function benchmarks perform operations at different alignments and for different sizes and compare performance between plain operations and the optimized string operations. Due to this their output is incompatible with the function benchmarks where we're interested in fastest time, throughput, etc. In future, the correctness checks in the benchmark tests can be removed. Same goes for the performance measurements in the string/test-*.
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