test: load tests symbols from binary at init

  Rather than call nm on the test application binary for each test to
consider, call it once at the object init.

Signed-off-by: David Marchand <david.marchand@redhat.com>
---

With a little patch of mine, before:
# make O=master test
/root/dpdk/master/app/test -c f -n 4
Filtering tests took 24s <===

Running tests with 4 workers

Test name                     Test result                     Test    Total
  

On 29-Apr-19 3:28 PM, David Marchand wrote:
> Rather than call nm on the test application binary for each test to
> consider, call it once at the object init.
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---
> 
> With a little patch of mine, before:
> # make O=master test
> /root/dpdk/master/app/test -c f -n 4
> Filtering tests took 24s <===
> 
> Running tests with 4 workers
> 
> Test name                     Test result                     Test    Total
> ================================================================================
> Skipped autotests:
> devargs:                      Skipped [Not compiled]       [00m 00s]
> cryptodev_sw_mrvl:            Skipped [Not compiled]       [00m 00s]
> ...
> 
> After:
> # make O=master test
> /root/dpdk/master/app/test -c f -n 4
> Filtering tests took 0s <===
> 
> Running tests with 4 workers
> 
> Test name                     Test result                     Test    Total
> ================================================================================
> Skipped autotests:
> devargs:                      Skipped [Not compiled]       [00m 00s]
> cryptodev_sw_mrvl:            Skipped [Not compiled]       [00m 00s]
> ...
> 
> ---
>   app/test/autotest_runner.py | 29 ++++++++++++++---------------
>   1 file changed, 14 insertions(+), 15 deletions(-)
> 
> diff --git a/app/test/autotest_runner.py b/app/test/autotest_runner.py
> index 36941a4..b72716e 100644
> --- a/app/test/autotest_runner.py
> +++ b/app/test/autotest_runner.py
> @@ -192,7 +192,6 @@ class AutotestRunner:
>       def __init__(self, cmdline, target, blacklist, whitelist, n_processes):
>           self.cmdline = cmdline
>           self.target = target
> -        self.binary = cmdline.split()[0]
>           self.blacklist = blacklist
>           self.whitelist = whitelist
>           self.skipped = []
> @@ -201,6 +200,16 @@ def __init__(self, cmdline, target, blacklist, whitelist, n_processes):
>           self.n_processes = n_processes
>           self.active_processes = 0
>   
> +        # parse the binary for available test commands
> +        binary = cmdline.split()[0]
> +        stripped = 'not stripped' not in \
> +                   subprocess.check_output(['file', binary])
> +        if not stripped:
> +            symbols = subprocess.check_output(['nm', binary]).decode('utf-8')
> +            self.avail_cmds = re.findall('test_register_(\w+)', symbols)
> +        else:
> +            self.avail_cmds = None
> +
>           # log file filename
>           logfile = "%s.log" % target
>           csvfile = "%s.csv" % target
> @@ -275,20 +284,10 @@ def __filter_test(self, test):
>               return False
>   
>           # if test wasn't compiled in, remove it as well
> -
> -        # parse the binary for available test commands
> -        stripped = 'not stripped' not in \
> -                   subprocess.check_output(['file', self.binary])
> -        if not stripped:
> -            symbols = subprocess.check_output(['nm',
> -                                               self.binary]).decode('utf-8')
> -            avail_cmds = re.findall('test_register_(\w+)', symbols)
> -
> -            if test_cmd not in avail_cmds:
> -                # notify user
> -                result = 0, "Skipped [Not compiled]", test_id, 0, "", None
> -                self.skipped.append(tuple(result))
> -                return False
> +        if self.avail_cmds and test_cmd not in self.avail_cmds:
> +            result = 0, "Skipped [Not compiled]", test_id, 0, "", None
> +            self.skipped.append(tuple(result))
> +            return False
>   
>           return True
>   
> 

LGTM

Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
  

David Marchand <david.marchand@redhat.com> writes:

> Rather than call nm on the test application binary for each test to
> consider, call it once at the object init.
>
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---

Acked-by: Aaron Conole <aconole@redhat.com>
  

29/04/2019 16:41, Burakov, Anatoly:
> On 29-Apr-19 3:28 PM, David Marchand wrote:
> > Rather than call nm on the test application binary for each test to
> > consider, call it once at the object init.
> > 
> > Signed-off-by: David Marchand <david.marchand@redhat.com>
> 
> LGTM
> 
> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

Applied, thanks