Hi, I have a similar problem (intel graphics). I consider the arguments above about the way how compositor work. However, would't then such a behaviour appear also in other environments with compositing ? I am also running xfce4 with compositing effects (xfwm4) enabled, but I don't see anyhthing similar to what in e20 - there it is just the particular application that eats CPU, not the window manager.
One thing I have noticed is that there isn't any noticable change in e20 performance when I switch the compositor from OpenGL to Software rendering. In case it may help understand the problem, here is top (most two CPU consuming processes) and perf comparison for e20 and xfce when running glxgears. top in xfce: CPU MEM 7281 root 20 0 274892 47584 34592 S 4.0 0.6 0:01.82 Xorg 7756 user 20 0 118408 15956 10296 S 2.0 0.2 0:00.43 glxgears top in e20: CPU MEM 4569 user 20 0 1087992 140764 58476 R 21.5 1.8 1:55.95 enlightenment 4455 root 20 0 317724 53852 38384 S 3.6 0.7 0:31.28 Xorg perf in xfce (shortened): 28.25% swapper [kernel.kallsyms] [k] intel_idle 1.10% gkrellm libc-2.21.so [.] _IO_vfscanf 1.05% Xorg [kernel.kallsyms] [k] _raw_spin_lock_irqsave 0.99% Xorg [kernel.kallsyms] [k] sock_poll 0.99% Xorg [kernel.kallsyms] [k] __fget 0.70% Xorg [kernel.kallsyms] [k] unix_poll 0.62% Xorg [kernel.kallsyms] [k] fput 0.62% gkrellm [kernel.kallsyms] [k] do_task_stat 0.60% Xorg [kernel.kallsyms] [k] do_select 0.58% Xorg Xorg [.] ResourceClientBits 0.49% swapper [kernel.kallsyms] [k] menu_select 0.46% Xorg Xorg [.] WaitForSomething 0.45% Xorg Xorg [.] dixLookupResourceByType 0.41% Xorg [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore 0.39% glxgears [kernel.kallsyms] [k] i915_parse_cmds perf in e20: 16.61% swapper [kernel.kallsyms] [k] intel_idle 2.43% enlightenment libevas.so.1.17.0 [.] _evas_render_phase1_object_process 1.78% enlightenment libpthread-2.21.so [.] __pthread_mutex_unlock_usercnt 1.71% enlightenment libpthread-2.21.so [.] pthread_mutex_lock 1.41% enlightenment libc-2.21.so [.] _int_malloc 0.92% enlightenment libevas.so.1.17.0 [.] evas_render_updates_internal_loop 0.84% enlightenment libc-2.21.so [.] _int_free 0.77% enlightenment libevas.so.1.17.0 [.] evas_render_updates_internal 0.64% enlightenment module.so [.] evas_gl_common_context_image_push 0.63% enlightenment libeo.so.1.17.0 [.] eo_data_scope_get 0.52% enlightenment module.so [.] evas_gl_common_context_font_push 0.42% enlightenment [kernel.kallsyms] [k] i915_parse_cmds 0.41% enlightenment [kernel.kallsyms] [k] i915_gem_pwrite_ioctl 0.38% skype libglib-2.0.so.0.4600.2 [.] g_mutex_lock 0.37% skype libglib-2.0.so.0.4600.2 [.] g_mutex_unlock 0.36% enlightenment libeo.so.1.17.0 [.] eo_data_xunref_internal 0.35% enlightenment [kernel.kallsyms] [k] copy_user_enhanced_fast_string 0.33% enlightenment [kernel.kallsyms] [k] drm_gem_object_lookup 0.33% enlightenment module.so [.] _evas_gl_common_context_push 0.33% enlightenment libc-2.21.so [.] __memcpy_sse2_unaligned 0.33% enlightenment [kernel.kallsyms] [k] i915_gem_madvise_ioctl 0.31% Xorg [kernel.kallsyms] [k] __fget 0.30% enlightenment libevas.so.1.17.0 [.] _evas_object_clip_prev_reset 0.30% enlightenment libc-2.21.so [.] __libc_calloc 0.30% Xorg [kernel.kallsyms] [k] _raw_spin_lock_irqsave 0.30% enlightenment libevas.so.1.17.0 [.] _evas_image_render 0.29% enlightenment libevas.so.1.17.0 [.] evas_render_mapped 0.29% Xorg [kernel.kallsyms] [k] sock_poll 0.28% gkrellm libc-2.21.so [.] _IO_vfscanf 0.27% enlightenment [kernel.kallsyms] [k] drm_ioctl 0.27% enlightenment module.so [.] _evas_gl_common_image_push 0.27% enlightenment libc-2.21.so [.] __memcmp_sse4_1 0.26% enlightenment libeo.so.1.17.0 [.] eo_isa 0.26% enlightenment libevas.so.1.17.0 [.] evas_object_smart_changed_get 0.25% enlightenment libevas.so.1.17.0 [.] evas_common_font_rgba_draw 0.24% enlightenment libeo.so.1.17.0 [.] eo_data_xref_internal 0.23% Xorg [kernel.kallsyms] [k] unix_poll 0.23% enlightenment module.so [.] evas_gl_common_shader_program_get 0.22% enlightenment libc-2.21.so [.] malloc_consolidate 0.21% skype [kernel.kallsyms] [k] __fget 0.21% enlightenment libdrm_intel.so.1.0.0 [.] 0x000000000000633e Pavel ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ enlightenment-users mailing list enlightenment-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-users
