kernel/linux.git/tools/perf/perf.h, branch v6.18.22

perf: Completely remove possibility to override MAX_NR_CPUS

2025-09-12T13:52:22+00:00

Commit 21b8732eb447 ("perf tools: Allow overriding MAX_NR_CPUS at compile time") added the capability to override MAX_NR_CPUS. At that time it was necessary to reduce the huge amount of RAM used by static stats variables. But this has been unnecessary since commit 6a1e2c5c2673 ("perf stat: Remove a set of shadow stats static variables"), and commit e8399d34d568 ("libperf cpumap: Hide/reduce scope of MAX_NR_CPUS") broke the build in that case because it failed to add the guard around the new definition of MAX_NR_CPUS. So cleanup things and remove guards completely to officialise it is not necessary anymore to override MAX_NR_CPUS. Fixes: e8399d34d568d61c ("libperf cpumap: Hide/reduce scope of MAX_NR_CPUS") Signed-off-by: Christophe Leroy Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/all/8c8553387ebf904a9e5a93eaf643cb01164d9fb3.1736188471.git.christophe.leroy@csgroup.eu/ Signed-off-by: Arnaldo Carvalho de Melo

perf: Increase MAX_NR_CPUS to 4096

2024-12-09T20:52:41+00:00

Systems have surpassed 2048 CPUs. Increase MAX_NR_CPUS to 4096. Bitmaps declared with MAX_NR_CPUS bits will increase from 256B to 512B, cpus_runtime will increase from 81960B to 163880B, and max_entries will increase from 8192B to 16384B. Reviewed-by: Ian Rogers Reviewed-by: Leo Yan Signed-off-by: Kyle Meyer Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ben Gainey Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20241206044035.1062032-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf util: Move perf_guest/host declarations

2023-04-10T22:22:05+00:00

The definitions are in util.c so move the declarations to match. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Athira Rajeev Cc: Chengdong Li Cc: Denis Nikitin Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Martin Liška Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Raul Silvera Cc: Ravi Bangoria Cc: Rob Herring Cc: Sean Christopherson Cc: Suzuki Poulouse Cc: Will Deacon Cc: Xing Zhengjun Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf util: Move input_name to util

2023-04-10T22:21:31+00:00

'input_name' is the name of the input perf.data file, it is used by data convert and ui code. Move it to util to make it more consistent with other global state. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Athira Rajeev Cc: Chengdong Li Cc: Denis Nikitin Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Martin Liška Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Raul Silvera Cc: Ravi Bangoria Cc: Rob Herring Cc: Sean Christopherson Cc: Suzuki Poulouse Cc: Will Deacon Cc: Xing Zhengjun Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf version: Use regular verbose flag

2023-04-10T22:21:17+00:00

Remove additional version_verbose flag by using the existing verbose variable. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Athira Rajeev Cc: Chengdong Li Cc: Denis Nikitin Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Martin Liška Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Raul Silvera Cc: Ravi Bangoria Cc: Rob Herring Cc: Sean Christopherson Cc: Suzuki Poulouse Cc: Will Deacon Cc: Xing Zhengjun Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf header: Move perf_version_string declaration

2023-04-10T22:21:05+00:00

Move to match the definition in header.c. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Athira Rajeev Cc: Chengdong Li Cc: Denis Nikitin Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Martin Liška Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Raul Silvera Cc: Ravi Bangoria Cc: Rob Herring Cc: Sean Christopherson Cc: Suzuki Poulouse Cc: Will Deacon Cc: Xing Zhengjun Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf ui: Move window resize signal functions

2023-04-10T22:20:38+00:00

Move under tools/perf/ui rather than in perf.c. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Athira Rajeev Cc: Chengdong Li Cc: Denis Nikitin Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Martin Liška Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Raul Silvera Cc: Ravi Bangoria Cc: Rob Herring Cc: Sean Christopherson Cc: Suzuki Poulouse Cc: Will Deacon Cc: Xing Zhengjun Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf time-utils: Adopt rdclock() from perf.h

2019-08-29T20:38:32+00:00

Seems to be a better place for this function to live, further shrinking the hodge-podge that perf.h was. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-0zzt1u9rpyjukdy1ccr2u5r9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move everything related to sys_perf_event_open() to perf-sys.h

2019-08-29T20:38:32+00:00

And remove unneeded include directives from perf-sys.h to prune the header dependency tree. Fixup the fallout in places where definitions were being used without the needed include directives that were being satisfied because they were in perf-sys.h. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-7b1zvugiwak4ibfa3j6ott7f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf record: Move record_opts and other record decls out of perf.h

2019-08-26T14:58:22+00:00

And into a separate util/record.h, to better isolate things and make sure that those who use record_opts and the other moved declarations are explicitly including the necessary header. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-31q8mei1qkh74qvkl9nwidfq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo