Profiling RetroArch (sdl)

gistfile1.txt

Tasks:  61 total,   2 running,  59 sleeping,   0 stopped,   0 zombie
Cpu(s): 98.7%us,  1.3%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:    315004k total,   115304k used,   199700k free,       24k buffers
Swap:        0k total,        0k used,        0k free,    67692k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                   
 1417 root      20   0 59264  25m 6956 S 86.6  8.2   2:42.63 retroarch                                                 
  870 root      20   0 41208  15m 7444 R 12.5  5.0   0:29.89 X                                                         
 1037 root      20   0  8968 3128 2484 S  0.3  1.0   0:00.24 sshd                                                      
 1481 root      20   0  2504 1152  920 R  0.3  0.4   0:00.05 top                                                       
    1 root      20   0  1664  620  552 S  0.0  0.2   0:30.79 init                                                      
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.00 kthreadd 

$ perf record -p `pidof retroarch`
$ perf report

# Overhead    Command         Shared Object                                Symbol
# ........  .........  ....................  ....................................
#
    66.37%  retroarch  retroarch             [.] scaler_argb8888_vert            
    24.49%  retroarch  retroarch             [.] scaler_argb8888_horiz           
     0.89%  retroarch  libretro.so           [.] DrawClippedTile16_Normal1x1     
     0.84%  retroarch  libretro.so           [.] dsp_run                         
     0.84%  retroarch  libretro.so           [.] DrawBackdrop16_Normal1x1        
     0.67%  retroarch  libretro.so           [.] dsp_voice_V3c                   
     0.65%  retroarch  libretro.so           [.] DrawBackgroundOffset.constprop.8
     0.62%  retroarch  retroarch             [.] conv_rgb565_argb8888            
     0.48%  retroarch  libretro.so           [.] S9xMainLoop                     
     0.46%  retroarch  libretro.so           [.] dsp_voice_V7_V4_V1              
     0.38%  retroarch  libretro.so           [.] OpADM1                          
     0.38%  retroarch  libretro.so           [.] S9xGetCPU                       
     0.36%  retroarch  libc-2.15.so          [.] memset                          
     0.31%  retroarch  retroarch             [.] sdl_gfx_frame                   
     0.29%  retroarch  libretro.so           [.] spc_run_until_                  
     0.24%  retroarch  libretro.so           [.] OpF0E0                          
     0.22%  retroarch  libretro.so           [.] Op29M1                          
     0.19%  retroarch  libretro.so           [.] S9xReschedule                   
     0.19%  retroarch  libretro.so           [.] S9xGetByte                      
     0.17%  retroarch  libretro.so           [.] dsp_voice_V8_V5_V2              
     0.17%  retroarch  libretro.so           [.] Immediate16.constprop.270       
     0.12%  retroarch  libretro.so           [.] S9xDoHEventProcessing           
     0.10%  retroarch  libretro.so           [.] Immediate8                      
     0.07%  retroarch  libretro.so           [.] spc_cpu_read                    
     0.07%  retroarch  libretro.so           [.] S9xMixSamples                   
     0.07%  retroarch  libretro.so           [.] S9xAPUExecute                   
     0.07%  retroarch  libretro.so           [.] Immediate8.constprop.272        
     0.05%  retroarch  libretro.so           [.] __udivsi3                       
     0.05%  retroarch  [kernel.kallsyms]     [k] do_sys_poll                     
     0.02%  retroarch  retroarch             [.] video_frame.part.2              
     0.02%  retroarch  retroarch             [.] msg_queue_pull                  
     0.02%  retroarch  retroarch             [.] sdl_joypad_button               
     0.02%  retroarch  libretro.so           [.] S9xCheckMissingHTimerPosition   
     0.02%  retroarch  libretro.so           [.] __aeabi_uidivmod                
     0.02%  retroarch  libretro.so           [.] .divsi3_skip_div0_test          
     0.02%  retroarch  libXext.so.6.4.0      [.] XShmPutImage                    
     0.02%  retroarch  libSDL-1.2.so.0.11.4  [.] SDL_JoystickUpdate              

$ perf record -p `pidof X`
$ perf report

# Overhead  Command      Shared Object                  Symbol
# ........  .......  .................  ......................
#
    98.34%        X  libfb.so           [.] fbBlt             
     0.37%        X  [kernel.kallsyms]  [k] __fsnotify_parent 
     0.18%        X  libfb.so           [.] fbPutImage        
     0.18%        X  libfb.so           [.] _fbGetWindowPixmap
     0.18%        X  [kernel.kallsyms]  [k] vfs_read          
     0.18%        X  [kernel.kallsyms]  [k] do_readv_writev   
     0.18%        X  [kernel.kallsyms]  [k] fsnotify          
     0.18%        X  [kernel.kallsyms]  [k] __kfree_skb       
     0.18%        X  [kernel.kallsyms]  [k] mutex_unlock