On 08/25/2011 05:52 PM, Stephen John Smoogen wrote:
On Thu, Aug 25, 2011 at 09:43, Joachim Backes <joachim.backes@xxxxxxxxxxxxxx> wrote:Hi, in an almost empty system (only running gnome-shell), I see CPU peaks all 20 seconds (kernel-3.1.0-0.rc3.git0.0.fc16.x86_64). It seems that gnome-shell is busy all 20 secs (similar effect like yesterday with kernel-3.1.0-0.rc2.git7.2.fc16.x86_64 and Xorg).What does top show at those times and what is the hardware etc. Without that info, it could be anything from a cron job to you have really bad drives and the 20 second sync takes a lot of CPU power to do it correctly.
7908 backes 20 0 1236m 66m 24m S 1.0 3.4 0:54.45 gnome-shell 12842 backes 20 0 15232 1316 980 R 1.0 0.1 0:00.12 top 7601 root 20 0 149m 10m 5232 S 0.7 0.5 1:14.37 Xorg 40 root 20 0 0 0 0 S 0.3 0.0 0:00.69 kworker/u:2 1 root 20 0 37500 4808 1988 S 0.0 0.2 0:04.95 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:00.78 ksoftirqd/0 6 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 7 root RT 0 0 0 0 S 0.0 0.0 0:00.03 watchdog/0 8 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1 10 root 20 0 0 0 0 S 0.0 0.0 0:00.51 ksoftirqd/1 12 root RT 0 0 0 0 S 0.0 0.0 0:00.02 watchdog/1 13 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 cpuset 14 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper 15 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kdevtmpfs 16 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns
17 root 20 0 0 0 0 S 0.0 0.0 0:00.02 sync_supers 10 root 20 0 0 0 0 S 0.0 0.0 0:00.51 ---------------------------------------------------------------- sudo crontab -l no crontab for root backes@eule [~]: crontab -l no crontab for backes ----------------------------------------------------------------- I have 2 sata disks: smartctl -x /dev/sda: SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds:ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 140 139 021 Pre-fail Always - 3958 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 723 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 091 091 000 Old_age Always - 6616 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 669 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 113 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 609 194 Temperature_Celsius 0x0022 101 096 000 Old_age Always - 42 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
SMART Error Log Version: 1 No Errors Logged ----------------------------------------------------------------------------- smartctl -x /dev/sdb SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds:ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0 3 Spin_Up_Time 0x0027 168 162 021 Pre-fail Always - 6600 4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1191 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 086 086 000 Old_age Always - 10557 10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always - 1152 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 47 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 1191 194 Temperature_Celsius 0x0022 112 098 000 Old_age Always - 38 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0
SMART Error Log Version: 1 No Errors Logged
Somebody has an explanation for that? See http://www-user.rhrk.uni-kl.de/~backes/UL/cpu.png. -- Joachim Backes<joachim.backes@xxxxxxxxxxxxxx> http://www.rhrk.uni-kl.de/~backes -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
-- Joachim Backes <joachim.backes@xxxxxxxxxxxxxx> http://www.rhrk.uni-kl.de/~backes
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