[1/2] perf: Fix POWER9 metric 'lsu_other_stall_cpi'
diff mbox series

Message ID 1588868938-21933-2-git-send-email-pc@us.ibm.com
State New, archived
Headers show
Series
  • perf: Fix POWER9 cpi_breakdown metricgroup
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Commit Message

Paul A. Clarke May 7, 2020, 4:28 p.m. UTC
From: "Paul A. Clarke" <pc@us.ibm.com>

The metric definition is too long for the current value of EXPR_MAX_OTHER.
Increase the value EXPR_MAX_OTHER sufficiently to allow
'lsu_other_stall_cpi' to build properly.

Before:
--
$ perf list | grep lsu_other
  lsu_other_stall_cpi
# perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
Cannot find metric or group `lsu_other_stall_cpi'

 Usage: perf stat [<options>] [<command>]

    -M, --metrics <metric/metric group list>
                          monitor specified metrics or metric groups (separated by ,)
--

After:
--
# perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1

 Performance counter stats for 'system wide':

       438,086,889      pm_cmplu_stall_lsu        #     1.74 lsu_other_stall_cpi
[...]
--

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
---
 tools/perf/util/expr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Arnaldo May 7, 2020, 4:48 p.m. UTC | #1
Em Thu, May 07, 2020 at 11:28:57AM -0500, Paul A. Clarke escreveu:
> From: "Paul A. Clarke" <pc@us.ibm.com>
> 
> The metric definition is too long for the current value of EXPR_MAX_OTHER.
> Increase the value EXPR_MAX_OTHER sufficiently to allow
> 'lsu_other_stall_cpi' to build properly.

I already have a patch from Ian that bumps this further:

[acme@five perf]$ git log -p tools/perf/util/expr.h
commit 26d3350db3e4668c1b1ff7f81c419afe71a2e8d9
Author: Ian Rogers <irogers@google.com>
Date:   Fri May 1 10:33:26 2020 -0700

    perf expr: Increase max other

    Large metrics such as Branch_Misprediction_Cost_SMT on x86 broadwell
    need more space.

    Signed-off-by: Ian Rogers <irogers@google.com>
    Acked-by: Jiri Olsa <jolsa@redhat.com>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Haiyan Song <haiyanx.song@intel.com>
    Cc: Jin Yao <yao.jin@linux.intel.com>
    Cc: John Garry <john.garry@huawei.com>
    Cc: Kajol Jain <kjain@linux.ibm.com>
    Cc: Kan Liang <kan.liang@linux.intel.com>
    Cc: Leo Yan <leo.yan@linaro.org>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Paul Clarke <pc@us.ibm.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
    Cc: Song Liu <songliubraving@fb.com>
    Cc: Stephane Eranian <eranian@google.com>
    Link: http://lore.kernel.org/lkml/20200501173333.227162-6-irogers@google.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 87d627bb699b..40fc452b0f2b 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -2,7 +2,7 @@
 #ifndef PARSE_CTX_H
 #define PARSE_CTX_H 1

-#define EXPR_MAX_OTHER 20
+#define EXPR_MAX_OTHER 64
 #define MAX_PARSE_ID EXPR_MAX_OTHER

 struct expr_parse_id {

 
> Before:
> --
> $ perf list | grep lsu_other
>   lsu_other_stall_cpi
> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> Cannot find metric or group `lsu_other_stall_cpi'
> 
>  Usage: perf stat [<options>] [<command>]
> 
>     -M, --metrics <metric/metric group list>
>                           monitor specified metrics or metric groups (separated by ,)
> --
> 
> After:
> --
> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> 
>  Performance counter stats for 'system wide':
> 
>        438,086,889      pm_cmplu_stall_lsu        #     1.74 lsu_other_stall_cpi
> [...]
> --
> 
> Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
> ---
>  tools/perf/util/expr.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> index 87d627bb699b..a0991959cca4 100644
> --- a/tools/perf/util/expr.h
> +++ b/tools/perf/util/expr.h
> @@ -2,7 +2,7 @@
>  #ifndef PARSE_CTX_H
>  #define PARSE_CTX_H 1
>  
> -#define EXPR_MAX_OTHER 20
> +#define EXPR_MAX_OTHER 28
>  #define MAX_PARSE_ID EXPR_MAX_OTHER
>  
>  struct expr_parse_id {
> -- 
> 2.18.2
>
Ian Rogers May 7, 2020, 5:21 p.m. UTC | #2
On Thu, May 7, 2020 at 9:48 AM Arnaldo Carvalho de Melo
<arnaldo.melo@gmail.com> wrote:
>
> Em Thu, May 07, 2020 at 11:28:57AM -0500, Paul A. Clarke escreveu:
> > From: "Paul A. Clarke" <pc@us.ibm.com>
> >
> > The metric definition is too long for the current value of EXPR_MAX_OTHER.
> > Increase the value EXPR_MAX_OTHER sufficiently to allow
> > 'lsu_other_stall_cpi' to build properly.
>
> I already have a patch from Ian that bumps this further:

I sent out:
https://lore.kernel.org/lkml/20200507081436.49071-2-irogers@google.com/
which removes this constant and moves the code to use a hashmap.
Unfortunately, the hashmap comes from libbpf and so there is a
dependency issue to resolve. Perhaps libapi can have a hashmap? I'm
not sure who resolves these issues. A short-term fix is just to make
the constant bigger.

Thanks,
Ian

> [acme@five perf]$ git log -p tools/perf/util/expr.h
> commit 26d3350db3e4668c1b1ff7f81c419afe71a2e8d9
> Author: Ian Rogers <irogers@google.com>
> Date:   Fri May 1 10:33:26 2020 -0700
>
>     perf expr: Increase max other
>
>     Large metrics such as Branch_Misprediction_Cost_SMT on x86 broadwell
>     need more space.
>
>     Signed-off-by: Ian Rogers <irogers@google.com>
>     Acked-by: Jiri Olsa <jolsa@redhat.com>
>     Cc: Adrian Hunter <adrian.hunter@intel.com>
>     Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
>     Cc: Andi Kleen <ak@linux.intel.com>
>     Cc: Haiyan Song <haiyanx.song@intel.com>
>     Cc: Jin Yao <yao.jin@linux.intel.com>
>     Cc: John Garry <john.garry@huawei.com>
>     Cc: Kajol Jain <kjain@linux.ibm.com>
>     Cc: Kan Liang <kan.liang@linux.intel.com>
>     Cc: Leo Yan <leo.yan@linaro.org>
>     Cc: Mark Rutland <mark.rutland@arm.com>
>     Cc: Namhyung Kim <namhyung@kernel.org>
>     Cc: Paul Clarke <pc@us.ibm.com>
>     Cc: Peter Zijlstra <peterz@infradead.org>
>     Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
>     Cc: Song Liu <songliubraving@fb.com>
>     Cc: Stephane Eranian <eranian@google.com>
>     Link: http://lore.kernel.org/lkml/20200501173333.227162-6-irogers@google.com
>     Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> index 87d627bb699b..40fc452b0f2b 100644
> --- a/tools/perf/util/expr.h
> +++ b/tools/perf/util/expr.h
> @@ -2,7 +2,7 @@
>  #ifndef PARSE_CTX_H
>  #define PARSE_CTX_H 1
>
> -#define EXPR_MAX_OTHER 20
> +#define EXPR_MAX_OTHER 64
>  #define MAX_PARSE_ID EXPR_MAX_OTHER
>
>  struct expr_parse_id {
>
>
> > Before:
> > --
> > $ perf list | grep lsu_other
> >   lsu_other_stall_cpi
> > # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> > Cannot find metric or group `lsu_other_stall_cpi'
> >
> >  Usage: perf stat [<options>] [<command>]
> >
> >     -M, --metrics <metric/metric group list>
> >                           monitor specified metrics or metric groups (separated by ,)
> > --
> >
> > After:
> > --
> > # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> >
> >  Performance counter stats for 'system wide':
> >
> >        438,086,889      pm_cmplu_stall_lsu        #     1.74 lsu_other_stall_cpi
> > [...]
> > --
> >
> > Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
> > ---
> >  tools/perf/util/expr.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> > index 87d627bb699b..a0991959cca4 100644
> > --- a/tools/perf/util/expr.h
> > +++ b/tools/perf/util/expr.h
> > @@ -2,7 +2,7 @@
> >  #ifndef PARSE_CTX_H
> >  #define PARSE_CTX_H 1
> >
> > -#define EXPR_MAX_OTHER 20
> > +#define EXPR_MAX_OTHER 28
> >  #define MAX_PARSE_ID EXPR_MAX_OTHER
> >
> >  struct expr_parse_id {
> > --
> > 2.18.2
> >
>
> --
>
> - Arnaldo
kajoljain May 8, 2020, 6:31 a.m. UTC | #3
On 5/7/20 9:58 PM, Paul A. Clarke wrote:
> From: "Paul A. Clarke" <pc@us.ibm.com>
> 
> The metric definition is too long for the current value of EXPR_MAX_OTHER.
> Increase the value EXPR_MAX_OTHER sufficiently to allow
> 'lsu_other_stall_cpi' to build properly.
> 
> Before:
> --
> $ perf list | grep lsu_other
>   lsu_other_stall_cpi
> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> Cannot find metric or group `lsu_other_stall_cpi'
> 
>  Usage: perf stat [<options>] [<command>]
> 
>     -M, --metrics <metric/metric group list>
>                           monitor specified metrics or metric groups (separated by ,)
> --
> 
> After:
> --
> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
> 
>  Performance counter stats for 'system wide':
> 
>        438,086,889      pm_cmplu_stall_lsu        #     1.74 lsu_other_stall_cpi
> [...]
> --
> 
> Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
> ---
>  tools/perf/util/expr.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> index 87d627bb699b..a0991959cca4 100644
> --- a/tools/perf/util/expr.h
> +++ b/tools/perf/util/expr.h
> @@ -2,7 +2,7 @@
>  #ifndef PARSE_CTX_H
>  #define PARSE_CTX_H 1
>  
> -#define EXPR_MAX_OTHER 20
> +#define EXPR_MAX_OTHER 28

Hi Paul,
	Ian already add one patch to increase EXPR_MAX_OTHER value to 68 which is Acked-by: Jiri

Link to the patch: https://lkml.org/lkml/2020/5/1/1023

Thanks,
Kajol Jain

>  #define MAX_PARSE_ID EXPR_MAX_OTHER
>  
>  struct expr_parse_id {
>
kajoljain May 8, 2020, 7:01 a.m. UTC | #4
On 5/8/20 12:01 PM, kajoljain wrote:
> 
> 
> On 5/7/20 9:58 PM, Paul A. Clarke wrote:
>> From: "Paul A. Clarke" <pc@us.ibm.com>
>>
>> The metric definition is too long for the current value of EXPR_MAX_OTHER.
>> Increase the value EXPR_MAX_OTHER sufficiently to allow
>> 'lsu_other_stall_cpi' to build properly.
>>
>> Before:
>> --
>> $ perf list | grep lsu_other
>>   lsu_other_stall_cpi
>> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
>> Cannot find metric or group `lsu_other_stall_cpi'
>>
>>  Usage: perf stat [<options>] [<command>]
>>
>>     -M, --metrics <metric/metric group list>
>>                           monitor specified metrics or metric groups (separated by ,)
>> --
>>
>> After:
>> --
>> # perf stat -a --metrics lsu_other_stall_cpi /bin/sleep 1
>>
>>  Performance counter stats for 'system wide':
>>
>>        438,086,889      pm_cmplu_stall_lsu        #     1.74 lsu_other_stall_cpi
>> [...]
>> --
>>
>> Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
>> ---
>>  tools/perf/util/expr.h | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
>> index 87d627bb699b..a0991959cca4 100644
>> --- a/tools/perf/util/expr.h
>> +++ b/tools/perf/util/expr.h
>> @@ -2,7 +2,7 @@
>>  #ifndef PARSE_CTX_H
>>  #define PARSE_CTX_H 1
>>  
>> -#define EXPR_MAX_OTHER 20
>> +#define EXPR_MAX_OTHER 28
> 
> Hi Paul,
> 	Ian already add one patch to increase EXPR_MAX_OTHER value to 68 which is Acked-by: Jiri

Sorry its 64 not 68 and I missed earlier response from Arnaldo and Ian.

Thanks,
Kajol Jain
> 
> Link to the patch: https://lkml.org/lkml/2020/5/1/1023
> 
> Thanks,
> Kajol Jain
> 
>>  #define MAX_PARSE_ID EXPR_MAX_OTHER
>>  
>>  struct expr_parse_id {
>>

Patch
diff mbox series

diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 87d627bb699b..a0991959cca4 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -2,7 +2,7 @@ 
 #ifndef PARSE_CTX_H
 #define PARSE_CTX_H 1
 
-#define EXPR_MAX_OTHER 20
+#define EXPR_MAX_OTHER 28
 #define MAX_PARSE_ID EXPR_MAX_OTHER
 
 struct expr_parse_id {