Description of problem: Idle CPU utilization extra high when using gnome-shell and mutter as apposed to compiz or metacity. With GNOME Shell selected from Desktop Effects: adam@zylog-portable:~$ top | egrep 'mutter|Xorg' 2750 adam 20 0 254m 91m 17m R 24.6 4.6 1:57.45 mutter 2187 root 20 0 69160 27m 11m S 15.1 1.4 1:19.59 Xorg 2750 adam 20 0 255m 92m 17m R 25.8 4.7 1:58.23 mutter 2187 root 20 0 68596 27m 11m S 15.9 1.4 1:20.07 Xorg 2750 adam 20 0 255m 92m 17m S 25.1 4.7 1:58.99 mutter 2187 root 20 0 68596 27m 11m S 15.2 1.4 1:20.53 Xorg 2750 adam 20 0 255m 92m 17m S 24.9 4.7 1:59.74 mutter 2187 root 20 0 68596 27m 11m S 14.6 1.4 1:20.97 Xorg 2750 adam 20 0 256m 93m 17m S 25.2 4.7 2:00.50 mutter 2187 root 20 0 68596 27m 11m S 15.3 1.4 1:21.43 Xorg With Compiz selected from Desktop Effects: adam@zylog-portable:~$ top | egrep 'compiz|Xorg' 2187 root 20 0 69972 27m 11m S 1.9 1.4 1:37.01 Xorg 2187 root 20 0 69224 26m 10m S 1.0 1.4 1:37.04 Xorg 2187 root 20 0 69228 26m 10m S 1.0 1.4 1:37.07 Xorg 2187 root 20 0 69220 26m 10m S 1.0 1.4 1:37.10 Xorg 2187 root 20 0 70072 26m 10m S 1.3 1.4 1:37.14 Xorg 2940 adam 20 0 54548 15m 5808 S 0.3 0.8 0:00.67 compiz With Standard selected from Desktop Effects: 2187 root 20 0 69404 27m 11m S 3.9 1.4 1:40.11 Xorg 2187 root 20 0 68652 27m 11m S 0.3 1.4 1:40.12 Xorg 2187 root 20 0 69828 27m 11m S 1.7 1.4 1:40.17 Xorg 2187 root 20 0 68628 27m 11m S 1.0 1.4 1:40.20 Xorg 2187 root 20 0 69784 27m 11m S 1.7 1.4 1:40.25 Xorg All tests run with nothing except Firefox, Terminal, and Desktop Effects open. Version-Release number of selected component (if applicable): adam@zylog-portable:~$ rpm -q gnome-shell gnome-shell-2.29.1-4.i686 adam@zylog-portable:~$ rpm -q mutter mutter-2.29.1-1.fc13.i686 How reproducible: Immediately upon switching to gnome-shell Steps to Reproduce: 1. Switch to gnome-shell 2. Observe high CPU utilization 3. Actual results: Much higher than average CPU utilization Expected results: CPU utilization in-line with other window managers Additional info: adam@zylog-portable:~$ uname -a Linux zylog-portable 2.6.33.6-147.fc13.i686 #1 SMP Tue Jul 6 22:30:55 UTC 2010 i686 i686 i386 GNU/Linux adam@zylog-portable:~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Celeron(R) CPU 743 @ 1.30GHz stepping : 10 cpu MHz : 1296.777 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx lm constant_tsc up arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm bogomips : 2593.55 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: adam@zylog-portable:~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03) 09:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) adam@zylog-portable:~$ lsmod Module Size Used by michael_mic 1516 4 arc4 1041 2 ecb 1491 2 fuse 46663 2 ip6t_REJECT 3298 2 nf_conntrack_ipv6 13996 2 ip6table_filter 2191 1 ip6_tables 9219 1 ip6table_filter ipv6 216192 18 ip6t_REJECT,nf_conntrack_ipv6 vboxnetadp 5238 0 vboxnetflt 10224 0 vboxdrv 133547 2 vboxnetadp,vboxnetflt uinput 5210 0 snd_hda_codec_realtek 200739 1 lib80211_crypt_tkip 6672 0 uvcvideo 46837 0 snd_hda_intel 20319 2 wl 1952561 0 videodev 29534 1 uvcvideo snd_hda_codec 61515 2 snd_hda_codec_realtek,snd_hda_intel v4l1_compat 11106 2 uvcvideo,videodev r8169 28261 0 snd_hwdep 4704 1 snd_hda_codec mii 3422 1 r8169 snd_seq 41363 0 snd_seq_device 4867 1 snd_seq snd_pcm 59284 2 snd_hda_intel,snd_hda_codec snd_timer 15063 2 snd_seq,snd_pcm i2c_i801 8286 0 snd 45127 12 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer lib80211 3942 2 lib80211_crypt_tkip,wl soundcore 4842 1 snd iTCO_wdt 8712 0 iTCO_vendor_support 1963 1 iTCO_wdt snd_page_alloc 5877 2 snd_hda_intel,snd_pcm dell_laptop 2896 0 rfkill 12905 1 dell_laptop serio_raw 3531 0 microcode 10013 0 dcdbas 6324 1 dell_laptop i915 232127 3 drm_kms_helper 21663 1 i915 drm 133489 4 i915,drm_kms_helper i2c_algo_bit 3929 1 i915 i2c_core 19731 6 videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit video 17109 1 i915 output 1541 1 video
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) Should be OK with the 4 series intel GPU. Reassigning to the gnome-shell component.
I should also point out that gnome-shell didn't have this issue on the same hardware earlier in Fedora 13's life cycle. I tried it for a while right after F13 launched and had no issue. It worked fine.
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Probably a duplicate *** This bug has been marked as a duplicate of bug 706971 ***