e able to track other segments (like data/rodata),
> but that would require some changes in /proc/modules IMHO.
>
> Reported-by: Blake Jones
> Cc: Luis Chamberlain
> Cc: Petr Pavlu
> Cc: Sami Tolvanen
> Cc: Daniel Gomez
> Cc: linux-modu...@vger.kernel.org
> Signed-
On Thu, Apr 11, 2024 at 5:17 PM Beau Belgrave wrote:
>
> In the Open Telemetry profiling SIG [1], we are trying to find a way to
> grab a tracing association quickly on a per-sample basis. The team at
> Elastic has a bespoke way to do this [2], however, I'd like to see a
> more general way to achi
perf build: Remove unused CONFIG_PERF_REGS
> perf parse-regs: Always build perf register functions
> perf parse-regs: Introduce a weak function arch__sample_reg_masks()
> perf build: Cleanup perf register configuration
Thanks Leo, this is great cleanup! Series:
Reviewed-by: I
Relative path include works in the regular build due to -I paths but may
break in other situations.
Signed-off-by: Ian Rogers
---
tools/perf/arch/arm64/util/kvm-stat.c | 4 ++--
tools/perf/arch/arm64/util/pmu.c | 4 ++--
tools/perf/arch/arm64/util/unwind-libunwind.c | 4
On Wed, Apr 14, 2021 at 6:16 AM Arnaldo Carvalho de Melo
wrote:
>
> Hi,
>
> Please take a look,
>
> Best regards,
Acked-by: Ian Rogers
Having been confused by this for a case in the past, thanks! It'd be
nice for code coverage's sake to have a shel
SPE extended headers are >1 byte so ensure the buffer contains at
least this before reading. This issue was detected by fuzzing.
Signed-off-by: Ian Rogers
---
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/p
On Thu, Mar 25, 2021 at 3:38 AM John Garry wrote:
>
> Function find_metric() is required for the metric processing in the
> pmu-events testcase, so make it public. Also change the name to include
> "metricgroup".
Would it make more sense as "pmu_events_map__find_metric" ?
Thanks,
Ian
> Signed-o
On Wed, Mar 24, 2021 at 6:54 AM Borislav Petkov wrote:
>
> On Wed, Mar 24, 2021 at 10:43:20AM -0300, Arnaldo Carvalho de Melo wrote:
> > Borislav, was this addressed? Ian?
>
> Yap:
>
> https://git.kernel.org/tip/0705ef64d1ff52b817e278ca6e28095585ff31e1
Tested on PPC and ARM64 fwiw. Thanks,
Ian
>
On Mon, Mar 22, 2021 at 6:24 AM Marco Elver wrote:
>
> On Wed, Mar 10, 2021 at 11:41AM +0100, Marco Elver wrote:
> > Add kselftest to test that remove_on_exec removes inherited events from
> > child tasks.
> >
> > Signed-off-by: Marco Elver
>
> To make compatible with more recent libc, we'll need
*/
> | ^~~~
>
> Restore the relative include paths so that the compiler can find the
> headers.
>
> Fixes: 93281c4a9657 ("x86/insn: Add an insn_decode() API")
> Reported-by: Ian Rogers
> Reported-by: Stephen Rothwell
> NOT-Signed-off-b
On Thu, Mar 4, 2021 at 9:56 AM Borislav Petkov wrote:
>
> From: Borislav Petkov
>
> Users of the instruction decoder should use this to decode instruction
> bytes. For that, have insn*() helpers return an int value to denote
> success/failure. When there's an error fetching the next insn byte and
Remove unused argument from daemon_exit.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/tools/perf/tests/shell/daemon.sh b/tools/perf/tests/shell/daemon.sh
index 5ad3ca8d681b..66ad56b4e0a5 100755
Reorder daemon_start and daemon_exit as the trap handler is added in
daemon_start referencing daemon_exit.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 34 +++-
1 file changed, 20 insertions(+), 14 deletions(-)
diff --git a/tools/perf/tests/shell
Retry the ping loop upto 600 times, or approximately 30 seconds, to make
sure the test does hang at start up.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 7 +++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/tests/shell/daemon.sh b/tools/perf/tests/shell
On Thu, Mar 11, 2021 at 2:38 AM Jiri Olsa wrote:
>
> On Wed, Mar 10, 2021 at 12:41:17PM -0800, Ian Rogers wrote:
> > Reorder daemon_start and daemon_exit as the trap handler is added in
> > daemon_start referencing daemon_exit.
>
> makes sense, minor comments below
>
Retry the ping loop upto 600 times, or approximately 30 seconds, to make
sure the test does hang at start up.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 7 +++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/tests/shell/daemon.sh b/tools/perf/tests/shell
Remove unused argument from daemon_exit.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/tools/perf/tests/shell/daemon.sh b/tools/perf/tests/shell/daemon.sh
index 5ad3ca8d681b..66ad56b4e0a5 100755
Reorder daemon_start and daemon_exit as the trap handler is added in
daemon_start referencing daemon_exit.
Signed-off-by: Ian Rogers
---
tools/perf/tests/shell/daemon.sh | 34 +++-
1 file changed, 20 insertions(+), 14 deletions(-)
diff --git a/tools/perf/tests/shell
Account for alignment bytes in the zero-ing memset.
Signed-off-by: Ian Rogers
---
tools/perf/util/synthetic-events.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/synthetic-events.c
b/tools/perf/util/synthetic-events.c
index b698046ec2db
/types.h then I say it is preferred.
Signed-off-by: Ian Rogers
---
tools/include/linux/types.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/include/linux/types.h b/tools/include/linux/types.h
index e9c5a215837d..6e14a533ab4e 100644
--- a/tools/include/linux/types.h
+++ b/tools
Add -Wall -Werror when compiling BPF skeletons.
Signed-off-by: Ian Rogers
---
tools/perf/Makefile.perf | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 5345ac70cd83..f43d2551f3de 100644
--- a/tools/perf/Makefile.perf
Missed space after #include.
Signed-off-by: Ian Rogers
---
tools/perf/util/bpf_counter.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/bpf_counter.h b/tools/perf/util/bpf_counter.h
index 2eca210e5dc1..cb9c532e0a07 100644
--- a/tools/perf/util/bpf_counter.h
Fixes -Wall warnings.
Signed-off-by: Ian Rogers
---
tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
b/tools/perf/util/bpf_skel/bpf_prog_profiler.bpf.c
index c7cec92d0236
Issue detected by address sanitizer.
Fixes: cd4ceb63438e (perf util: Save pid-cmdline mapping into tracing header)
Signed-off-by: Ian Rogers
---
tools/perf/util/trace-event-read.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/trace-event-read.c
b/tools/perf/util/trace
Option doesn't take a value, make sure the man pages agree. For example:
$ perf evlist --verbose=1
Error: option `verbose' takes no value
Signed-off-by: Ian Rogers
---
tools/perf/Documentation/perf-evlist.txt | 2 +-
tools/perf/Documentation/perf-ftrace.txt | 4 ++--
On Thu, Nov 19, 2020 at 10:30 PM Ian Rogers wrote:
>
> Add all other man pages to the "see also" list except for
> perf-script-perl and perf-script-python that are linked to from
> perf-script.
>
> v2. Fix accidentally listing perf-top twice.
>
> Signed-off-b
Migrated to libperf in:
commit 4b247fa7314c ("libperf: Adopt xyarray class from perf")
Signed-off-by: Ian Rogers
---
tools/perf/util/xyarray.c | 33 -
1 file changed, 33 deletions(-)
delete mode 100644 tools/perf/util/xyarray.c
diff --git a/tools
Minor cleanup.
Signed-off-by: Ian Rogers
---
tools/perf/bench/epoll-ctl.c | 1 -
tools/perf/bench/epoll-wait.c | 1 -
tools/perf/bench/futex-hash.c | 1 -
tools/perf/bench/futex-lock-pi.c | 1 -
tools/perf/bench/futex-requeue.c | 1
On Wed, Feb 3, 2021 at 4:58 PM Arnaldo Carvalho de Melo wrote:
>
> Em Wed, Feb 03, 2021 at 05:50:24PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Wed, Feb 03, 2021 at 10:38:41AM -0800, Ian Rogers escreveu:
> > > On Wed, Feb 3, 2021 at 8:21 AM Arnaldo Carvalho
On Wed, Feb 3, 2021 at 8:21 AM Arnaldo Carvalho de Melo wrote:
>
> Em Tue, Feb 02, 2021 at 09:26:59PM -0800, Ian Rogers escreveu:
> > Move print_*_events functions out of parse-events.c into a new
> > print-events.c. Move tracepoint code into tracepoint.c or
> > trace
from parse-events.h. Fix a
checkpatch.pl warning on using unsigned rather than unsigned int.
Signed-off-by: Ian Rogers
---
tools/perf/builtin-list.c | 2 +-
tools/perf/builtin-lock.c | 1 +
tools/perf/builtin-timechart.c | 1 +
tools/perf/builtin-trace.c | 1
Avoid a naming conflict with for_each_event with similar code in
parse-events.c, rename to for_each_event_tps.
Signed-off-by: Ian Rogers
---
tools/perf/util/trace-event-info.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/tools/perf/util/trace-event-info.c
b
Minor cleanup motivated by trying to separately fuzz test parse-events.
Signed-off-by: Ian Rogers
---
tools/perf/util/parse-events.c | 2 --
tools/perf/util/parse-events.l | 1 -
2 files changed, 3 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index
The variable bf is read (for a write call) without being initialized
triggering a memory sanitizer warning. Use bf in the read and switch the
write to reading from a string.
Signed-off-by: Ian Rogers
---
tools/lib/perf/tests/test-evlist.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions
Permissions are necessary to get a tracepoint id. Fail the test when the
read fails.
Signed-off-by: Ian Rogers
---
tools/lib/perf/tests/test-evlist.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/lib/perf/tests/test-evlist.c
b/tools/lib/perf/tests/test-evlist.c
index d913241d4135
If a test fails return -1 rather than 0. This is consistent with the
return value in test-cpumap.c
Signed-off-by: Ian Rogers
---
tools/lib/perf/tests/test-cpumap.c| 2 +-
tools/lib/perf/tests/test-evlist.c| 2 +-
tools/lib/perf/tests/test-evsel.c | 2 +-
tools/lib/perf/tests/test
No additional warnings are generated by enabling this, but having it
enabled will help avoid regressions.
Signed-off-by: Ian Rogers
---
tools/bpf/bpftool/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index
Add inline to __always_inline making it match the linux/compiler.h.
Adding this avoids an unused function warning on bpf_tail_call_static
when compining with -Wall.
Signed-off-by: Ian Rogers
---
tools/lib/bpf/bpf_helpers.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
lt will be either IDS1 or IDS2 depending on CONST (which
may be evaluated from an entire expression), and so IDS1 or IDS2 may
be discarded avoiding events from being programmed.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/ex
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populates.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 26 +-
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 13 ++
3 files changed, 143 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 39
identical, as we don't need to evaluate the IF
condition.
v2. is a rebase.
Ian Rogers (5):
perf metric: Restructure struct expr_parse_ctx.
perf metric: Use NAN for missing event IDs.
perf metric: Rename expr__find_other.
perf metric: Add utilities to work on ids map.
perf metric:
he IF
condition.
v2. is a rebase.
Ian Rogers (5):
perf metric: Restructure struct expr_parse_ctx.
perf metric: Use NAN for missing event IDs.
perf metric: Rename expr__find_other.
perf metric: Add utilities to work on ids map.
perf metric: Don't compute unused events.
tools/perf/te
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
lt will be either IDS1 or IDS2 depending on CONST (which
may be evaluated from an entire expression), and so IDS1 or IDS2 may
be discarded avoiding events from being programmed.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/ex
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populates.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 26 +-
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 13 ++
3 files changed, 143 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 9 +
3 files changed, 139 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
lt will be either IDS1 or IDS2 depending on CONST (which
may be evaluated from an entire expression), and so IDS1 or IDS2 may
be discarded avoiding events from being programmed.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/ex
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populates.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 26 +-
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4
are added and useless frees are replaced by asserts. A new peephole
optimization is added for the case CONST IF expr ELSE CONST, where the
the constants are identical, as we don't need to evaluate the IF
condition.
v2. is a rebase.
Ian Rogers (5):
perf metric: Restructure struct expr_pars
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
lt will be either IDS1 or IDS2 depending on CONST (which
may be evaluated from an entire expression), and so IDS1 or IDS2 may
be discarded avoiding events from being programmed.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/ex
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populates.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 26 +-
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 9 +
3 files changed, 139 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
is added for the case CONST IF expr ELSE CONST, where the
the constants are identical, as we don't need to evaluate the IF
condition.
v2. is a rebase.
Ian Rogers (5):
perf metric: Restructure struct expr_parse_ctx.
perf metric: Use NAN for missing event IDs.
perf metric: R
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 9 +
3 files changed, 139 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
S1 or IDS2 depending on CONST (which
may be evaluated from an entire expression), and so IDS1 or IDS2 may
be discarded avoiding events from being programmed.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 17 ++
tools/perf/u
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populates.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 26 +-
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
an assignment in patch 2/5. In patch 5/5 additional comments
are added and useless frees are replaced by asserts. A new peephole
optimization is added for the case CONST IF expr ELSE CONST, where the
the constants are identical, as we don't need to evaluate the IF
condition.
v2. is a rebase.
Add all other man pages to the "see also" list except for
perf-script-perl and perf-script-python that are linked to from
perf-script.
v2. Fix accidentally listing perf-top twice.
Signed-off-by: Ian Rogers
---
tools/perf/Documentation/perf.txt | 12
1 file changed, 12
Add all other man pages to the "see also" list except for
perf-script-perl and perf-script-python that are linked to from
perf-script.
Signed-off-by: Ian Rogers
---
tools/perf/Documentation/perf.txt | 12
1 file changed, 12 insertions(+)
diff --git a/tools/perf/Doc
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
S1 or IDS2 depending on CONST which
may be evaluated from an entire expression.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 10 ++
tools/perf/util/expr.c | 9 +-
tools/perf/util/expr.h | 1 -
tools/perf/util/expr.l | 9
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populated.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 8
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4 ++--
tools/perf/util
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 9 +
3 files changed, 139 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
rebase.
Ian Rogers (5):
perf metric: Restructure struct expr_parse_ctx.
perf metric: Use NAN for missing event IDs.
perf metric: Rename expr__find_other.
perf metric: Add utilities to work on ids map.
perf metric: Don't compute unused events.
tools/perf/tests/expr.c
To ensure the stack frames are on the stack tail calls optimizations
need to be inhibited. If your compiler supports an attribute use it,
otherwise use an asm volatile barrier.
The barrier fix was suggested here:
https://lore.kernel.org/lkml/20201028081123.gt2...@hirez.programming.kicks-ass.net/
ized-value
elfutils/libdwfl/frame_unwind.c:648:8 in handle_cfi
Signed-off-by: Ian Rogers
---
tools/perf/arch/x86/tests/dwarf-unwind.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c
b/tools/perf/arch/x86/tests/dwarf-unwind.c
index 4e40402a4f81.
A later change will remove the notion of other, rename the function to
expr__find_ids as this is what it populated.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 8
tools/perf/tests/pmu-events.c | 9 -
tools/perf/util/expr.c| 4 ++--
tools/perf/util
If during computing a metric an event (id) is missing the parsing
aborts. A later patch will make it so that events that aren't used in
the output are deliberately omitted, in which case we don't want the
abort. Modify the missing ID case to report NAN for these cases.
Signed-off-by:
multiplexing as discussed in this thread:
https://lore.kernel.org/lkml/20201110100346.2527031-1-irog...@google.com/
This change modifies expression parsing so that constants are
considered when building the set of ids (events) and only events not
contributing to a constant value are measured.
Ian Rogers
S1 or IDS2 depending on CONST which
may be evaluated from an entire expression.
- The ids at the end of parsing are added to the context.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 10 ++
tools/perf/util/expr.c | 9 +-
tools/perf/util/expr.h | 1 -
tools/perf/util/expr.l | 9
-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 47 ++
tools/perf/util/expr.c | 87 +++--
tools/perf/util/expr.h | 9 +
3 files changed, 139 insertions(+), 4 deletions(-)
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests
expr__ctx_free to manage expr_parse_ctx memory.
Adjust use of struct expr_parse_ctx accordingly.
Signed-off-by: Ian Rogers
---
tools/perf/tests/expr.c | 81 ++-
tools/perf/tests/pmu-events.c | 37 +---
tools/perf/util/expr.c| 38
From: Sandeep Dasgupta
Read a CSV file info a two dimensional vector of vectors. Open
parentheses are counted so that expressions like "min(a,b)" aren't
split. Escape characters and quotations aren't handled.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-
From: Sandeep Dasgupta
Add API that is called to generate code using all registered targets.
Co-authored-by: Stephane Eranian
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../topdown-parser/code_gen_target.cpp| 51
.../topdown-parser/code_gen_target.h
From: Sandeep Dasgupta
A parser capable of processing metrics found in TMA_Metrics.csv.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../pmu-events/topdown-parser/expr_parser.y | 224 ++
1 file changed, 224 insertions(+)
create
_misc.recovery_cycles_any,edge,any,inv/
(57.17%)
12,383,804,530 cpu/cpu_clk_unhalted.thread_any,edge,any,inv/
(57.12%)
10.159307832 seconds time elapsed
Co-authored-by: Stephane Eranian
Co-authored-by: Ian R
From: Sandeep Dasgupta
Add an ability to load then query events loaded from json files. Events
may be loaded from a single json file, such as on
download.01.org/perfmon, are from multiple json files within a
directory.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by
From: Sandeep Dasgupta
Code generation from read in TMA_Metrics.csv to json metric encoding.
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../code_gen_target_perf_json.cpp | 546 ++
.../code_gen_target_perf_json.h | 25 +
2 files
From: Sandeep Dasgupta
Basic string, ostream and file functions.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../topdown-parser/general_utils.cpp | 173 ++
.../pmu-events/topdown-parser/general_utils.h | 131
From: Sandeep Dasgupta
Invoke the necessary configuration reading and parsing, then code
generation. Handles command line arguments.
Add a minor README.
Co-authored-by: Stephane Eranian
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
tools/perf/pmu
From: Sandeep Dasgupta
The configuration.json holds configuration data that will be read
into the ConfigurationParameters class in configuration.h.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../topdown-parser/configuration.cpp | 198
From: Sandeep Dasgupta
Wrap jsmn as a "C" library. Add some utilities for working with tokens
and to read a vector of tokens.
Co-authored-by: Ian Rogers
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../pmu-events/topdown-parser/jsmn_extras
From: Sandeep Dasgupta
Reads the CSV file then creates an in memory model from the data.
Co-authored-by: Stephane Eranian
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../topdown-parser/dependence_dag_utils.cpp | 984 ++
.../topdown-parser
This RFC is for a new tool that reads TMA_Metrics.csv as found on
download.01.org/perfmon and generates metrics and metric groups from
it. To show the functionality the TMA_Metrics.csv is downloaded, but
an accepted change would most likely include a copy of this file from
Intel. With this tool rat
From: Sandeep Dasgupta
A logging API that is simpler but inspired by that in abseil.
Signed-off-by: Ian Rogers
Signed-off-by: Sandeep Dasgupta
---
.../perf/pmu-events/topdown-parser/logging.h | 25 +++
1 file changed, 25 insertions(+)
create mode 100644 tools/perf/pmu
On Tue, Nov 3, 2020 at 6:43 AM John Garry wrote:
>
> On 20/10/2020 17:53, Ian Rogers wrote:
> >>> Thanks for taking a look John. If you want help you can send the
> >>> output of "perf test 67 -vvv" to me. It is possible Broadwell has
> >>> s
On Tue, Oct 27, 2020 at 11:39 PM Leo Yan wrote:
>
> The event type 'ldst' is added for recording both load and store memory
> operations, this patch documents for the new event type.
>
> Signed-off-by: Leo Yan
> ---
> tools/perf/Documentation/perf-mem.txt | 6 +-
> 1 file changed, 5 insertio
result properly even the machine doesn't support
> the memory events.
>
> Signed-off-by: Leo Yan
Acked-by: Ian Rogers
Thanks,
Ian
> ---
> tools/perf/builtin-mem.c | 10 +-
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/tools/perf
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