mbox series

[v2,0/4] Add VG register attr test with kernel version and feature detection

Message ID 20221213114739.2312862-1-james.clark@arm.com (mailing list archive)
Headers show
Series Add VG register attr test with kernel version and feature detection | expand

Message

James Clark Dec. 13, 2022, 11:47 a.m. UTC
I didn't get any feedback on the RFC version of this that I posted a
while back [1]. I'd still like to add the test, especially now that
6.1 has been released with this new feature, so I've rebased it onto
perf/core and double checked that it's still working.

Applies to perf/core (0c3852adae83)

Thanks
James

[1]: https://lore.kernel.org/bpf/20220927154104.869029-1-james.clark@arm.com/

James Clark (4):
  perf test: Add ability to test exit code for attr tests
  perf test: Add mechanism for skipping attr tests on auxiliary vector
    values
  perf test: Add mechanism for skipping attr tests on kernel versions
  perf test arm64: Add attr tests for new VG register

 tools/perf/tests/attr.py                      | 71 +++++++++++++++++--
 .../attr/test-record-user-regs-no-sve-aarch64 |  9 +++
 .../test-record-user-regs-old-sve-aarch64     | 10 +++
 .../attr/test-record-user-regs-sve-aarch64    | 14 ++++
 4 files changed, 99 insertions(+), 5 deletions(-)
 create mode 100644 tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
 create mode 100644 tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
 create mode 100644 tools/perf/tests/attr/test-record-user-regs-sve-aarch64

Comments

Arnaldo Carvalho de Melo Dec. 13, 2022, 2:51 p.m. UTC | #1
Em Tue, Dec 13, 2022 at 11:47:35AM +0000, James Clark escreveu:
> I didn't get any feedback on the RFC version of this that I posted a
> while back [1]. I'd still like to add the test, especially now that
> 6.1 has been released with this new feature, so I've rebased it onto
> perf/core and double checked that it's still working.
> 
> Applies to perf/core (0c3852adae83)

I'm applying this locally, would this be testable on a Firefly (roc-rk3399-pc):

acme@roc-rk3399-pc:~$ head /proc/cpuinfo
processor	: 0
BogoMIPS	: 48.00
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer	: 0x41
CPU architecture: 8
CPU variant	: 0x0
CPU part	: 0xd03
CPU revision	: 4

processor	: 1
acme@roc-rk3399-pc:~$

- Arnaldo
 
> Thanks
> James
> 
> [1]: https://lore.kernel.org/bpf/20220927154104.869029-1-james.clark@arm.com/
> 
> James Clark (4):
>   perf test: Add ability to test exit code for attr tests
>   perf test: Add mechanism for skipping attr tests on auxiliary vector
>     values
>   perf test: Add mechanism for skipping attr tests on kernel versions
>   perf test arm64: Add attr tests for new VG register
> 
>  tools/perf/tests/attr.py                      | 71 +++++++++++++++++--
>  .../attr/test-record-user-regs-no-sve-aarch64 |  9 +++
>  .../test-record-user-regs-old-sve-aarch64     | 10 +++
>  .../attr/test-record-user-regs-sve-aarch64    | 14 ++++
>  4 files changed, 99 insertions(+), 5 deletions(-)
>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-sve-aarch64
> 
> -- 
> 2.25.1
James Clark Dec. 13, 2022, 3:30 p.m. UTC | #2
On 13/12/2022 14:51, Arnaldo Carvalho de Melo wrote:
> Em Tue, Dec 13, 2022 at 11:47:35AM +0000, James Clark escreveu:
>> I didn't get any feedback on the RFC version of this that I posted a
>> while back [1]. I'd still like to add the test, especially now that
>> 6.1 has been released with this new feature, so I've rebased it onto
>> perf/core and double checked that it's still working.
>>
>> Applies to perf/core (0c3852adae83)
> 
> I'm applying this locally, would this be testable on a Firefly (roc-rk3399-pc):

Thanks Arnaldo. It doesn't look like rk3399 has SVE, so
test-record-user-regs-no-sve-aarch64 will run to check that the kernel
won't give you the new register. So I suppose the answer to the question
is partially.

For test-record-user-regs-sve-aarch64, I've been running it on a
Graviton 3 on AWS which has SVE:

  ubuntu@ip-10-252-130-213:~/linux$ head /proc/cpuinfo
  processor	: 0
  BogoMIPS	: 2100.00
  Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp
asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp
sha512 sve asimdfhm dit uscat ilrcpc flagm ssbs paca pacg dcpodp svei8mm
svebf16 i8mm bf16 dgh rng
  CPU implementer	: 0x41
  CPU architecture: 8
  CPU variant	: 0x1
  CPU part	: 0xd40
  CPU revision	: 1

  processor	: 1

> 
> acme@roc-rk3399-pc:~$ head /proc/cpuinfo
> processor	: 0
> BogoMIPS	: 48.00
> Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
> CPU implementer	: 0x41
> CPU architecture: 8
> CPU variant	: 0x0
> CPU part	: 0xd03
> CPU revision	: 4
> 
> processor	: 1
> acme@roc-rk3399-pc:~$
> 
> - Arnaldo
>  
>> Thanks
>> James
>>
>> [1]: https://lore.kernel.org/bpf/20220927154104.869029-1-james.clark@arm.com/
>>
>> James Clark (4):
>>   perf test: Add ability to test exit code for attr tests
>>   perf test: Add mechanism for skipping attr tests on auxiliary vector
>>     values
>>   perf test: Add mechanism for skipping attr tests on kernel versions
>>   perf test arm64: Add attr tests for new VG register
>>
>>  tools/perf/tests/attr.py                      | 71 +++++++++++++++++--
>>  .../attr/test-record-user-regs-no-sve-aarch64 |  9 +++
>>  .../test-record-user-regs-old-sve-aarch64     | 10 +++
>>  .../attr/test-record-user-regs-sve-aarch64    | 14 ++++
>>  4 files changed, 99 insertions(+), 5 deletions(-)
>>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
>>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
>>  create mode 100644 tools/perf/tests/attr/test-record-user-regs-sve-aarch64
>>
>> -- 
>> 2.25.1
>
Arnaldo Carvalho de Melo Dec. 14, 2022, 2:38 p.m. UTC | #3
Em Tue, Dec 13, 2022 at 03:30:37PM +0000, James Clark escreveu:
> 
> 
> On 13/12/2022 14:51, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Dec 13, 2022 at 11:47:35AM +0000, James Clark escreveu:
> >> I didn't get any feedback on the RFC version of this that I posted a
> >> while back [1]. I'd still like to add the test, especially now that
> >> 6.1 has been released with this new feature, so I've rebased it onto
> >> perf/core and double checked that it's still working.
> >>
> >> Applies to perf/core (0c3852adae83)
> > 
> > I'm applying this locally, would this be testable on a Firefly (roc-rk3399-pc):
> 
> Thanks Arnaldo. It doesn't look like rk3399 has SVE, so
> test-record-user-regs-no-sve-aarch64 will run to check that the kernel
> won't give you the new register. So I suppose the answer to the question
> is partially.
> 
> For test-record-user-regs-sve-aarch64, I've been running it on a
> Graviton 3 on AWS which has SVE:
> 
>   ubuntu@ip-10-252-130-213:~/linux$ head /proc/cpuinfo
>   processor	: 0
>   BogoMIPS	: 2100.00
>   Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp
> asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp
> sha512 sve asimdfhm dit uscat ilrcpc flagm ssbs paca pacg dcpodp svei8mm
> svebf16 i8mm bf16 dgh rng
>   CPU implementer	: 0x41
>   CPU architecture: 8
>   CPU variant	: 0x1
>   CPU part	: 0xd40
>   CPU revision	: 1
> 
>   processor	: 1

Indeed:

root@roc-rk3399-pc:~# perf test -v _attr
 17: Setup struct perf_event_attr                                    :
--- start ---
test child forked, pid 30139
Using CPUID 0x00000000410fd080
/home/acme/libexec/perf-core/tests/attr.py:155: DeprecationWarning: The SafeConfigParser class has been renamed to ConfigParser in Python 3.2. This alias will be removed in Python 3.12. Use ConfigParser directly instead.
  parser = configparser.SafeConfigParser()
running '/home/acme/libexec/perf-core/tests/attr/test-record-C0'
/home/acme/libexec/perf-core/tests/attr.py:250: DeprecationWarning: The SafeConfigParser class has been renamed to ConfigParser in Python 3.2. This alias will be removed in Python 3.12. Use ConfigParser directly instead.
  parser_event = configparser.SafeConfigParser()
/home/acme/libexec/perf-core/tests/attr.py:264: DeprecationWarning: The SafeConfigParser class has been renamed to ConfigParser in Python 3.2. This alias will be removed in Python 3.12. Use ConfigParser directly instead.
  parser_base = configparser.SafeConfigParser()
running '/home/acme/libexec/perf-core/tests/attr/test-record-basic'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-any'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-any'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_call'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_call'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_ret'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-any_ret'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-hv'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-hv'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-ind_call'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-ind_call'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-k'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-k'
running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-u'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-branch-filter-u'
running '/home/acme/libexec/perf-core/tests/attr/test-record-count'
running '/home/acme/libexec/perf-core/tests/attr/test-record-data'
running '/home/acme/libexec/perf-core/tests/attr/test-record-freq'
running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-default'
test limitation '!aarch64'
excluded architecture list ['aarch64']
skipped [aarch64] '/home/acme/libexec/perf-core/tests/attr/test-record-graph-default'
running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-default-aarch64'
test limitation 'aarch64'
running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-dwarf'
running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-fp'
test limitation '!aarch64'
excluded architecture list ['aarch64']
skipped [aarch64] '/home/acme/libexec/perf-core/tests/attr/test-record-graph-fp'
running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-fp-aarch64'
test limitation 'aarch64'
running '/home/acme/libexec/perf-core/tests/attr/test-record-group'
running '/home/acme/libexec/perf-core/tests/attr/test-record-group-sampling'
running '/home/acme/libexec/perf-core/tests/attr/test-record-group1'
running '/home/acme/libexec/perf-core/tests/attr/test-record-group2'
running '/home/acme/libexec/perf-core/tests/attr/test-record-no-buffering'
running '/home/acme/libexec/perf-core/tests/attr/test-record-no-inherit'
running '/home/acme/libexec/perf-core/tests/attr/test-record-no-samples'
running '/home/acme/libexec/perf-core/tests/attr/test-record-period'
running '/home/acme/libexec/perf-core/tests/attr/test-record-pfm-period'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-pfm-period'
running '/home/acme/libexec/perf-core/tests/attr/test-record-raw'
running '/home/acme/libexec/perf-core/tests/attr/test-record-spe-period'
test limitation 'aarch64'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-spe-period'
running '/home/acme/libexec/perf-core/tests/attr/test-record-spe-period-term'
test limitation 'aarch64'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-spe-period-term'
running '/home/acme/libexec/perf-core/tests/attr/test-record-spe-physical-address'
test limitation 'aarch64'
unsupp  '/home/acme/libexec/perf-core/tests/attr/test-record-spe-physical-address'
running '/home/acme/libexec/perf-core/tests/attr/test-record-user-regs-no-sve-aarch64'
test limitation 'aarch64'
running '/home/acme/libexec/perf-core/tests/attr/test-record-user-regs-old-sve-aarch64'
test limitation 'aarch64'
skipped [new kernel skip] '/home/acme/libexec/perf-core/tests/attr/test-record-user-regs-old-sve-aarch64'
running '/home/acme/libexec/perf-core/tests/attr/test-record-user-regs-sve-aarch64'
test limitation 'aarch64'
skipped [auxv skip] '/home/acme/libexec/perf-core/tests/attr/test-record-user-regs-sve-aarch64'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-C0'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-basic'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-default'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-1'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-2'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-detailed-3'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-group'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-group1'
running '/home/acme/libexec/perf-core/tests/attr/test-stat-no-inherit'
test child finished with 0
---- end ----
Setup struct perf_event_attr: Ok
root@roc-rk3399-pc:~#