The related Red Hat Private Bug is 1024453. This package is available via Errata RHSA-2013:1519. The related Red Hat Private Bug is 1004185. This package is available via Errata RHSA-2013:1450. The related Red Hat Private Bug is 1001954. This package is available via Errata RHSA-2013:1436. The related Red Hat Private Bug is 975507. This package is available via Errata RHSA-2013:1645. This issue is addressed in the following kernel updates:
#Cpu utime stime update
This is documented in the Intel® Xeon® E7-2800/4800/8800 v2 Product Family Specification Update as erratum CF101. On Intel® Xeon® Processor E7 v2 Family 6 Model 62 (also known as IvyBridge-EX), the Time Stamp Counter (TSC) is not cleared by a warm reset. This is documented in the Intel® Xeon® Processor E5 v2 Family Specification Update as erratum CA105.
On Intel® Xeon® Processor E5 v2 Family 6 Model 62 (also known as IvyBridge), the Time Stamp Counter (TSC) is not cleared by a warm reset. This is documented in the Intel® Xeon® Processor E5 Family Specification Update as erratum BT81. On Intel® Xeon® Processor E5 Family 6 Model 45 (also known as SandyBridge), the Time Stamp Counter (TSC) is not cleared by a warm reset. Systems with Intel® Xeon® Processor E5, Intel® Xeon® Processor E5 v2, or Intel® Xeon® Processor E7 v2 and certain versions of Red Hat Enterprise Linux 6 kernels become unresponsive/hung or incur a kernel panic Version: Intel(R) Xeon(R) CPU E5-2643 v2 3.50GHzĭescription: Red Hat Enterprise Linux Server release 6.4 (Santiago) In general, the longer a system has been running without interruption, the more stable and reliable it is likely to be. CPU uptime is important because it can be used as an indicator of a computer's stability and reliability. To find HZ configured runįunc calculateCPUPercentUnix(previousCPU, previousSystem uint64, v *types.- ps 명령으로 프로세스 정보 조회 시 utime과 stime이 크게 확인됨 (리부팅 후에도 동일) Essentially, it's a measure of how long the CPU has been active since the last time the system was started or rebooted. The value of HZ varies across kernel versions and hardware platforms (100 - 1000). The size of a jiffy is determined by the value of the kernel constant HZ.
#Cpu utime stime software
Resolution of the software clock, a clock maintained by the kernel which measures time in jiffies. The accuracy of various system calls that set timeouts, and measure CPU time is limited by the The number of clock ticks per second (see man 7 time). (42) delayacct_blkio_ticks %llu Aggregated block I/O delays, measured in clock ticks (centiseconds). As an approximation, we will use delayacct_blkio_ticks There is no such thing as iotime in stat file. (15) stime %lu Amount of time that this process has been scheduled in kernel mode, measured in clock Virtual CPU, see below), so that applications that are not aware of the guest time field do not This includes guest time, guest_time (time spent running a
(14) utime %lu Amount of time that this process has been scheduled in user mode, measured in clock The value is expressed in clock ticks (divide by sysconf(_SC_CLK_TCK)). (22) starttime %llu The time the process started after system boot.
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