* [PATCH] perf report: Fix debug messages with --call-graph option
@ 2017-09-22 2:06 zhangmengting
2017-09-22 9:18 ` Jiri Olsa
0 siblings, 1 reply; 3+ messages in thread
From: zhangmengting @ 2017-09-22 2:06 UTC (permalink / raw)
To: linux-kernel, linux-perf-users
Cc: peterz, mingo, acme, alexander.shishkin, yao.jin, ak, jolsa,
namhyung, kjlx, milian.wolff, wangnan0, huawei.libin,
zhangmengting
With --call-graph option, perf report can display call chains using
type, min percent threshold, optional print limit and order. And the
default call-graph parameter is 'graph,0.5,caller,function,percent'.
Before this patch, 'perf report --call-graph' shows incorrect debug
messages as below:
[root@localhost perf]# ./perf report --call-graph
Invalid callchain mode: 0.5
Invalid callchain order: 0.5
Invalid callchain sort key: 0.5
Invalid callchain config key: 0.5
Invalid callchain mode: caller
Invalid callchain mode: function
Invalid callchain order: function
Invalid callchain mode: percent
Invalid callchain order: percent
Invalid callchain sort key: percent
The patch fixes this issue.
Signed-off-by: zhangmengting <zhangmengting@huawei.com>
---
tools/perf/util/callchain.c | 35 +++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 510b513..be09d77 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -65,8 +65,6 @@ static int parse_callchain_mode(const char *value)
callchain_param.mode = CHAIN_FOLDED;
return 0;
}
-
- pr_err("Invalid callchain mode: %s\n", value);
return -1;
}
@@ -82,8 +80,6 @@ static int parse_callchain_order(const char *value)
callchain_param.order_set = true;
return 0;
}
-
- pr_err("Invalid callchain order: %s\n", value);
return -1;
}
@@ -105,8 +101,6 @@ static int parse_callchain_sort_key(const char *value)
callchain_param.branch_callstack = 1;
return 0;
}
-
- pr_err("Invalid callchain sort key: %s\n", value);
return -1;
}
@@ -124,8 +118,6 @@ static int parse_callchain_value(const char *value)
callchain_param.value = CCVAL_COUNT;
return 0;
}
-
- pr_err("Invalid callchain config key: %s\n", value);
return -1;
}
@@ -319,12 +311,27 @@ int perf_callchain_config(const char *var, const char *value)
return ret;
}
- if (!strcmp(var, "print-type"))
- return parse_callchain_mode(value);
- if (!strcmp(var, "order"))
- return parse_callchain_order(value);
- if (!strcmp(var, "sort-key"))
- return parse_callchain_sort_key(value);
+ if (!strcmp(var, "print-type")){
+ int ret;
+ ret = parse_callchain_mode(value);
+ if (ret == -1)
+ pr_err("Invalid callchain mode: %s\n", value);
+ return ret;
+ }
+ if (!strcmp(var, "order")){
+ int ret;
+ ret = parse_callchain_order(value);
+ if (ret == -1)
+ pr_err("Invalid callchain order: %s\n", value);
+ return ret;
+ }
+ if (!strcmp(var, "sort-key")){
+ int ret;
+ ret = parse_callchain_sort_key(value);
+ if (ret == -1)
+ pr_err("Invalid callchain sort key: %s\n", value);
+ return ret;
+ }
if (!strcmp(var, "threshold")) {
callchain_param.min_percent = strtod(value, &endptr);
if (value == endptr) {
--
1.7.12.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] perf report: Fix debug messages with --call-graph option
2017-09-22 2:06 [PATCH] perf report: Fix debug messages with --call-graph option zhangmengting
@ 2017-09-22 9:18 ` Jiri Olsa
2017-09-23 8:19 ` zhangmengting
0 siblings, 1 reply; 3+ messages in thread
From: Jiri Olsa @ 2017-09-22 9:18 UTC (permalink / raw)
To: zhangmengting
Cc: linux-kernel, linux-perf-users, peterz, mingo, acme,
alexander.shishkin, yao.jin, ak, jolsa, namhyung, kjlx,
milian.wolff, wangnan0, huawei.libin
On Fri, Sep 22, 2017 at 10:06:53AM +0800, zhangmengting wrote:
> With --call-graph option, perf report can display call chains using
> type, min percent threshold, optional print limit and order. And the
> default call-graph parameter is 'graph,0.5,caller,function,percent'.
>
> Before this patch, 'perf report --call-graph' shows incorrect debug
> messages as below:
> [root@localhost perf]# ./perf report --call-graph
> Invalid callchain mode: 0.5
> Invalid callchain order: 0.5
> Invalid callchain sort key: 0.5
> Invalid callchain config key: 0.5
> Invalid callchain mode: caller
> Invalid callchain mode: function
> Invalid callchain order: function
> Invalid callchain mode: percent
> Invalid callchain order: percent
> Invalid callchain sort key: percent
hum, could you please mention what was wrong with
the code and why the change fixes them?
looks like you just moved the warning out of the
way of the report
thanks,
jirka
>
> The patch fixes this issue.
>
> Signed-off-by: zhangmengting <zhangmengting@huawei.com>
> ---
> tools/perf/util/callchain.c | 35 +++++++++++++++++++++--------------
> 1 file changed, 21 insertions(+), 14 deletions(-)
>
> diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
> index 510b513..be09d77 100644
> --- a/tools/perf/util/callchain.c
> +++ b/tools/perf/util/callchain.c
> @@ -65,8 +65,6 @@ static int parse_callchain_mode(const char *value)
> callchain_param.mode = CHAIN_FOLDED;
> return 0;
> }
> -
> - pr_err("Invalid callchain mode: %s\n", value);
> return -1;
> }
>
> @@ -82,8 +80,6 @@ static int parse_callchain_order(const char *value)
> callchain_param.order_set = true;
> return 0;
> }
> -
> - pr_err("Invalid callchain order: %s\n", value);
> return -1;
> }
>
> @@ -105,8 +101,6 @@ static int parse_callchain_sort_key(const char *value)
> callchain_param.branch_callstack = 1;
> return 0;
> }
> -
> - pr_err("Invalid callchain sort key: %s\n", value);
> return -1;
> }
>
> @@ -124,8 +118,6 @@ static int parse_callchain_value(const char *value)
> callchain_param.value = CCVAL_COUNT;
> return 0;
> }
> -
> - pr_err("Invalid callchain config key: %s\n", value);
> return -1;
> }
>
> @@ -319,12 +311,27 @@ int perf_callchain_config(const char *var, const char *value)
>
> return ret;
> }
> - if (!strcmp(var, "print-type"))
> - return parse_callchain_mode(value);
> - if (!strcmp(var, "order"))
> - return parse_callchain_order(value);
> - if (!strcmp(var, "sort-key"))
> - return parse_callchain_sort_key(value);
> + if (!strcmp(var, "print-type")){
> + int ret;
> + ret = parse_callchain_mode(value);
> + if (ret == -1)
> + pr_err("Invalid callchain mode: %s\n", value);
> + return ret;
> + }
> + if (!strcmp(var, "order")){
> + int ret;
> + ret = parse_callchain_order(value);
> + if (ret == -1)
> + pr_err("Invalid callchain order: %s\n", value);
> + return ret;
> + }
> + if (!strcmp(var, "sort-key")){
> + int ret;
> + ret = parse_callchain_sort_key(value);
> + if (ret == -1)
> + pr_err("Invalid callchain sort key: %s\n", value);
> + return ret;
> + }
> if (!strcmp(var, "threshold")) {
> callchain_param.min_percent = strtod(value, &endptr);
> if (value == endptr) {
> --
> 1.7.12.4
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] perf report: Fix debug messages with --call-graph option
2017-09-22 9:18 ` Jiri Olsa
@ 2017-09-23 8:19 ` zhangmengting
0 siblings, 0 replies; 3+ messages in thread
From: zhangmengting @ 2017-09-23 8:19 UTC (permalink / raw)
To: Jiri Olsa
Cc: linux-kernel, linux-perf-users, peterz, mingo, acme,
alexander.shishkin, yao.jin, ak, jolsa, namhyung, kjlx,
milian.wolff, wangnan0, huawei.libin
Hi Jiri,
Thanks for the review. Agreed, the patch seems confused.
I'll add more details in the next version patch and resend it later.
Thanks,
Mengting Zhang
On 2017/9/22 17:18, Jiri Olsa wrote:
> On Fri, Sep 22, 2017 at 10:06:53AM +0800, zhangmengting wrote:
>> With --call-graph option, perf report can display call chains using
>> type, min percent threshold, optional print limit and order. And the
>> default call-graph parameter is 'graph,0.5,caller,function,percent'.
>>
>> Before this patch, 'perf report --call-graph' shows incorrect debug
>> messages as below:
>> [root@localhost perf]# ./perf report --call-graph
>> Invalid callchain mode: 0.5
>> Invalid callchain order: 0.5
>> Invalid callchain sort key: 0.5
>> Invalid callchain config key: 0.5
>> Invalid callchain mode: caller
>> Invalid callchain mode: function
>> Invalid callchain order: function
>> Invalid callchain mode: percent
>> Invalid callchain order: percent
>> Invalid callchain sort key: percent
> hum, could you please mention what was wrong with
> the code and why the change fixes them?
>
> looks like you just moved the warning out of the
> way of the report
>
> thanks,
> jirka
>
>> The patch fixes this issue.
>>
>> Signed-off-by: zhangmengting <zhangmengting@huawei.com>
>> ---
>> tools/perf/util/callchain.c | 35 +++++++++++++++++++++--------------
>> 1 file changed, 21 insertions(+), 14 deletions(-)
>>
>> diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
>> index 510b513..be09d77 100644
>> --- a/tools/perf/util/callchain.c
>> +++ b/tools/perf/util/callchain.c
>> @@ -65,8 +65,6 @@ static int parse_callchain_mode(const char *value)
>> callchain_param.mode = CHAIN_FOLDED;
>> return 0;
>> }
>> -
>> - pr_err("Invalid callchain mode: %s\n", value);
>> return -1;
>> }
>>
>> @@ -82,8 +80,6 @@ static int parse_callchain_order(const char *value)
>> callchain_param.order_set = true;
>> return 0;
>> }
>> -
>> - pr_err("Invalid callchain order: %s\n", value);
>> return -1;
>> }
>>
>> @@ -105,8 +101,6 @@ static int parse_callchain_sort_key(const char *value)
>> callchain_param.branch_callstack = 1;
>> return 0;
>> }
>> -
>> - pr_err("Invalid callchain sort key: %s\n", value);
>> return -1;
>> }
>>
>> @@ -124,8 +118,6 @@ static int parse_callchain_value(const char *value)
>> callchain_param.value = CCVAL_COUNT;
>> return 0;
>> }
>> -
>> - pr_err("Invalid callchain config key: %s\n", value);
>> return -1;
>> }
>>
>> @@ -319,12 +311,27 @@ int perf_callchain_config(const char *var, const char *value)
>>
>> return ret;
>> }
>> - if (!strcmp(var, "print-type"))
>> - return parse_callchain_mode(value);
>> - if (!strcmp(var, "order"))
>> - return parse_callchain_order(value);
>> - if (!strcmp(var, "sort-key"))
>> - return parse_callchain_sort_key(value);
>> + if (!strcmp(var, "print-type")){
>> + int ret;
>> + ret = parse_callchain_mode(value);
>> + if (ret == -1)
>> + pr_err("Invalid callchain mode: %s\n", value);
>> + return ret;
>> + }
>> + if (!strcmp(var, "order")){
>> + int ret;
>> + ret = parse_callchain_order(value);
>> + if (ret == -1)
>> + pr_err("Invalid callchain order: %s\n", value);
>> + return ret;
>> + }
>> + if (!strcmp(var, "sort-key")){
>> + int ret;
>> + ret = parse_callchain_sort_key(value);
>> + if (ret == -1)
>> + pr_err("Invalid callchain sort key: %s\n", value);
>> + return ret;
>> + }
>> if (!strcmp(var, "threshold")) {
>> callchain_param.min_percent = strtod(value, &endptr);
>> if (value == endptr) {
>> --
>> 1.7.12.4
>>
> --
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2017-09-22 2:06 [PATCH] perf report: Fix debug messages with --call-graph option zhangmengting
2017-09-22 9:18 ` Jiri Olsa
2017-09-23 8:19 ` zhangmengting
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