On Tue, May 12, 2015 at 2:16 AM, Vittorio Giovara
<[email protected]> wrote:
> On Sun, May 10, 2015 at 11:01 PM, Luca Barbato <[email protected]> wrote:
>> On 01/05/15 08:39, Anton Khirnov wrote:
>>
>> More specific benchmarks. As expected they aren't really different.
>>
>>  Performance counter stats for './avconv-v12_dev0-1273-g46914ff -nostats
>> -v quiet -filter_complex testsrc -t 600 -c:v mpeg2video -f null -' (30
>> runs):
>>
>>       18186.236693      task-clock (msec)         #    1.271 CPUs
>> utilized            ( +-  1.06% )
>>             300332      context-switches          #    0.017 M/sec
>>               ( +-  0.00% )
>>                851      cpu-migrations            #    0.047 K/sec
>>               ( +-  5.59% )
>>             153625      page-faults               #    0.008 M/sec
>>               ( +-  0.00% )
>>        47684924907      cycles                    #    2.622 GHz
>>               ( +-  0.14% )
>>        17169614279      stalled-cycles-frontend   #   36.01% frontend
>> cycles idle     ( +-  0.38% )
>>                  0      stalled-cycles-backend    #    0.00% backend
>> cycles idle
>>       103427443643      instructions              #    2.17  insns per cycle
>>                                                   #    0.17  stalled
>> cycles per insn  ( +-  0.00% )
>>         9126880556      branches                  #  501.856 M/sec
>>               ( +-  0.00% )
>>          113808703      branch-misses             #    1.25% of all
>> branches          ( +-  0.13% )
>>
>>       14.306429475 seconds time elapsed
>>          ( +-  1.11% )
>>
>>
>>  Performance counter stats for './avconv-v12_dev0-1276-g9503449 -nostats
>> -v quiet -filter_complex testsrc -t 600 -c:v mpeg2video -f null -' (30
>> runs):
>>
>>       18207.403592      task-clock (msec)         #    1.273 CPUs
>> utilized            ( +-  0.99% )
>>             300327      context-switches          #    0.016 M/sec
>>               ( +-  0.00% )
>>                860      cpu-migrations            #    0.047 K/sec
>>               ( +-  6.30% )
>>             153626      page-faults               #    0.008 M/sec
>>               ( +-  0.00% )
>>        47685530782      cycles                    #    2.619 GHz
>>               ( +-  0.15% )
>>        17165731850      stalled-cycles-frontend   #   36.00% frontend
>> cycles idle     ( +-  0.41% )
>>                  0      stalled-cycles-backend    #    0.00% backend
>> cycles idle
>>       103428007012      instructions              #    2.17  insns per cycle
>>                                                   #    0.17  stalled
>> cycles per insn  ( +-  0.00% )
>>         9127004846      branches                  #  501.280 M/sec
>>               ( +-  0.00% )
>>          113822534      branch-misses             #    1.25% of all
>> branches          ( +-  0.12% )
>>
>>       14.305442763 seconds time elapsed
>>          ( +-  1.01% )
>>
>>
>>  Performance counter stats for './avconv-v12_dev0-1273-g46914ff -nostats
>> -v quiet -i /tmp/test.mkv -f null -' (30 runs):
>>
>>        2364.470888      task-clock (msec)         #    1.564 CPUs
>> utilized            ( +-  1.49% )
>>             150459      context-switches          #    0.064 M/sec
>>               ( +-  0.02% )
>>                177      cpu-migrations            #    0.075 K/sec
>>               ( +- 12.06% )
>>                773      page-faults               #    0.327 K/sec
>>               ( +-  0.05% )
>>         6823046093      cycles                    #    2.886 GHz
>>               ( +-  0.33% )
>>         3953734628      stalled-cycles-frontend   #   57.95% frontend
>> cycles idle     ( +-  0.56% )
>>                  0      stalled-cycles-backend    #    0.00% backend
>> cycles idle
>>         8204593415      instructions              #    1.20  insns per cycle
>>                                                   #    0.48  stalled
>> cycles per insn  ( +-  0.00% )
>>         1187962103      branches                  #  502.422 M/sec
>>               ( +-  0.01% )
>>           20631618      branch-misses             #    1.74% of all
>> branches          ( +-  0.20% )
>>
>>        1.511403840 seconds time elapsed
>>          ( +-  1.48% )
>>
>>
>>  Performance counter stats for './avconv-v12_dev0-1276-g9503449 -nostats
>> -v quiet -i /tmp/test.mkv -f null -' (30 runs):
>>
>>        2347.891829      task-clock (msec)         #    1.562 CPUs
>> utilized            ( +-  1.72% )
>>             150424      context-switches          #    0.064 M/sec
>>               ( +-  0.02% )
>>                138      cpu-migrations            #    0.059 K/sec
>>               ( +-  8.35% )
>>                773      page-faults               #    0.329 K/sec
>>               ( +-  0.05% )
>>         6809473884      cycles                    #    2.900 GHz
>>               ( +-  0.33% )
>>         3941879048      stalled-cycles-frontend   #   57.89% frontend
>> cycles idle     ( +-  0.59% )
>>                  0      stalled-cycles-backend    #    0.00% backend
>> cycles idle
>>         8204107450      instructions              #    1.20  insns per cycle
>>                                                   #    0.48  stalled
>> cycles per insn  ( +-  0.01% )
>>         1187871561      branches                  #  505.931 M/sec
>>               ( +-  0.01% )
>>           20597974      branch-misses             #    1.73% of all
>> branches          ( +-  0.15% )
>>
>>        1.502766680 seconds time elapsed
>>          ( +-  1.72% )
>
> Anton, would the set be good to go after this?

I'd queue this for end of this week if no objections.

-- 
Vittorio
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