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H A Dcheck-perf-trace.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
H A Dfailed-syscalls.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
H A Dwakeup-latency.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
H A Drw-by-pid.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
H A Drw-by-file.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
H A Drwtop.pldiff 67439d555f7d46349deef56886129da96bd15744 Wed Mar 11 14:28:36 CET 2020 Michael Petlan <mpetlan@redhat.com> perf scripting perl: Add common_callchain to fix argument order

Since common_callchain has been added to the argument array, we need to
reflect it in perl-based scripts, because otherwise the following args
would be shifted and thus incorrect. E.g. rw-by-pid and calculation of
read and written bytes:

Before:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 424510450039736 0

After:

read counts by pid:
pid comm # reads bytes_requested bytes_read
------ -------------------- ----------- ---------- ----------
19301 dd 4 9536 4341

Committer testing:

To see before after first do:

# perf script record rw-by-pid
^C

Now you'll have a perf.data file to report on, then do before and after
using:

# perf script report rw-by-pid

Anbd notice the bytes_request/bytes_read, as above.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Benjamin Salon <bsalon@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200311132836.12693-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>