WebIt turns out that in our Grub boot parameters for AL2, we had added clocksource=hpet about two years ago, but all of our servers launched prior to 6/17 had a clocksource of kvm-clock, apparently ignoring the Grub config. Servers launched after 6/17 (with the same AMI, Grub config, everything) were honoring the specified clocksource, which ... WebOct 27, 2024 · > the TSC clocksource, which was the selected clocksource. In 10% of the > boots of the machine, TSC was marked unstable and the HPET clocksource was > selected as the best clocksource: > > [ 13.669682] clocksource: timekeeping watchdog on CPU6: hpet read-back delay of 60666ns, attempt 4, marking unstable
Host CPU does not scale frequency when KVM guest needs it
WebSep 5, 2013 · Enable clocksource failover by adding clocksource_failover kernel parameter. and that message was displayed twice per second approximately. Now is: hpet clockevent registered Switching to clocksource hpet rtc_cmos 00:04: setting system clock to 2013-09-20 08:46:50 UTC (1379666810) Refined TSC clocksource calibration: … WebJun 18, 2024 · [ 2.083856] clocksource: Switched to clocksource hpet With tsc=unstable, it just switches to hpet earlier. Full dmesg logs in both cases will be attached. Comment 3 James Ettle 2024-06-19 12:23:04 UTC Created attachment 301222 dmesg output with AGESA 1.2.0.7. Comment 4 James Ettle 2024-06-19 12:23:24 UTC ... black beauty\\u0027s stablemates ginger and
216146 – TSC marked unstable on AMD Ryzen 5700G - Linux kernel
WebThe HPET is a timer chip that in some future time is expected to completely replace the PIT. It provides a number of hardware timers that can be exploited by the kernel. Basically, … WebMar 4, 2024 · 3. I am having trouble using HPET on my physical machine. It is not available, even though I have enabled it in my bios, forced it in grub, and triple checked my kernel to include HPET in its compilation. Motherboard: Supermicro X9DRW. Processor: 2x Intel (R) Xeon (R) CPU E5-2640. SAS Controller: LSI Logic / Symbios Logic SAS2004 PCI … WebDec 10, 2012 · Edit 1: After git log search all the new changes related to "clocksource" in the current Linux kernel tree, it turns out there's a HUGE amount of changes regarding clocksources. This looks hard to track down an existing fix that might be the applicable to my problem. Edit 3: Thanks @thkala. black beauty uk