High gstreamer cpu load

marc lievens mark.lievens at gmail.com
Fri Nov 27 03:18:40 PST 2015


Hi,

I added the perf top result, but at this time only for 1 camera.
If wanted I can try again after the weekend with about 5 cams if wanted

regards


2015-11-27 11:08 GMT+01:00 Tim Müller <tim at centricular.com>:

> On Fri, 2015-11-27 at 10:52 +0100, marc lievens wrote:
>
> > In meantime I also tried it on Linux with same result.
>
> What does 'sudo perf top' on Linux list at the top then?
>
> Regards
>  -Tim
>
> --
> Tim Müller, Centricular Ltd - http://www.centricular.com
>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
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>
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Samples: 1M of event 'cycles', Event count (approx.): 6559933264                                 
Overhead  Shared Object                            Symbol                                       ◆
   2,64%  libc-2.21.so                             [.] __mcount_internal                        ▒
   1,47%  [kernel]                                 [k] __fget                                   ▒
   1,26%  libc-2.21.so                             [.] _mcount                                  ▒
   1,06%  libc-2.21.so                             [.] _int_malloc                              ▒
   0,99%  [kernel]                                 [k] __schedule                               ▒
   0,95%  [kernel]                                 [k] menu_select                              ▒
   0,93%  [kernel]                                 [k] __i915_wait_request                      ▒
   0,84%  [unknown]                                [.] 0x00007f7b0932f884                       ▒
   0,81%  perf                                     [.] 0x00000000000dea16                       ▒
   0,79%  [unknown]                                [.] 0x00007f7b0932f869                       ▒
   0,75%  [kernel]                                 [k] fput                                     ▒
   0,74%  libc-2.21.so                             [.] _int_free                                ▒
   0,74%  perf                                     [.] 0x000000000007ae97                       ▒
   0,71%  [kernel]                                 [k] _raw_spin_lock_irqsave                   ▒
   0,63%  libc-2.21.so                             [.] malloc                                   ▒
   0,60%  [kernel]                                 [k] sock_poll                                ▒
   0,60%  [kernel]                                 [k] do_sys_poll                              ▒
   0,59%  [kernel]                                 [k] update_cfs_shares                        ▒
   0,58%  [kernel]                                 [k] timerqueue_add                           ▒
   0,57%  [kernel]                                 [k] gen6_ring_get_seqno                      ▒
   0,55%  [kernel]                                 [k] unix_poll                                ▒
   0,54%  [kernel]                                 [k] enqueue_entity                           ▒
   0,51%  [kernel]                                 [k] __switch_to                              ▒
   0,49%  [kernel]                                 [k] entry_SYSCALL_64_after_swapgs            ▒
   0,48%  libglib-2.0.so.0.4600.1                  [.] g_mutex_lock                             ▒
   0,45%  [kernel]                                 [k] _raw_spin_lock                           ▒
   0,44%  [kernel]                                 [k] native_write_msr_safe                    ▒
   0,42%  [kernel]                                 [k] copy_user_enhanced_fast_string           ▒
   0,42%  libgobject-2.0.so.0.4600.1               [.] g_type_check_instance_is_fundamentally_a ▒
   0,42%  [kernel]                                 [k] int_sqrt                                 ▒
   0,41%  [kernel]                                 [k] update_curr                              ▒
   0,40%  [kernel]                                 [k] set_next_entity                          ▒
   0,40%  libpthread-2.21.so                       [.] pthread_mutex_lock                       ▒
   0,39%  [kernel]                                 [k] entry_SYSCALL_64                         ▒
   0,36%  [kernel]                                 [k] pick_next_task_fair                      ▒
   0,35%  [kernel]                                 [k] hrtimer_start_range_ns                   ▒
   0,33%  beam.smp                                 [.] process_main                             ▒
   0,33%  libc-2.21.so                             [.] __strcmp_sse2_unaligned                  ▒
   0,31%  libc-2.21.so                             [.] __memcpy_sse2_unaligned                  ▒
   0,31%  [kernel]                                 [k] __fget_light                             ▒
   0,31%  libpthread-2.21.so                       [.] pthread_mutex_unlock                     ▒
   0,30%  [kernel]                                 [k] ktime_get                                ▒
   0,29%  [kernel]                                 [k] __tick_nohz_idle_enter                   ▒
   0,29%  libglib-2.0.so.0.4600.1                  [.] g_hash_table_lookup                      ▒
   0,29%  [kernel]                                 [k] dequeue_entity                           ▒
   0,28%  [kernel]                                 [k] unix_stream_read_generic                 ▒
   0,28%  [kernel]                                 [k] _raw_spin_unlock_irqrestore              ▒
   0,28%  libglib-2.0.so.0.4600.1                  [.] g_mutex_unlock                           ▒
   0,27%  beam.smp                                 [.] 0x00000000000b7ae8                       ▒
   0,27%  [kernel]                                 [k] rb_erase                                 ▒
   0,27%  [kernel]                                 [k] cpuacct_charge                           ▒
   0,27%  libc-2.21.so                             [.] free                                     ▒
   0,26%  libQt5Core.so.5.4.2                      [.] _ZN23QCoreApplicationPrivate34sendThrough▒
   0,25%  [kernel]                                 [k] native_read_tsc                          ▒
   0,25%  [unknown]                                [.] 0x00007f7b0dd053df                       ▒
   0,24%  [kernel]                                 [k] update_cfs_rq_blocked_load               ▒
   0,23%  libglib-2.0.so.0.4600.1                  [.] g_slice_alloc                            ▒
   0,23%  libgstreamer-1.0.so.0.700.0              [.] gst_pad_chain_data_unchecked             ▒
   0,22%  [kernel]                                 [k] dequeue_task_fair                        ▒
   0,22%  [kernel]                                 [k] format_decode                            ▒
   0,21%  [unknown]                                [.] 0x00007f7b0dd03cec                       ▒
   0,21%  libQt5Core.so.5.4.2                      [.] _ZN9QIODevice4readEPcx                   ▒
   0,21%  libglib-2.0.so.0.4600.1                  [.] g_slice_free1                            ▒
Failed to open /tmp/perf-1615.map, continuing without symbols


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