Bug 483416
| Summary: | Powertop: 99.4% (82314.7) <interrupt> : ahci, uhci_hcd:usb5, yenta, i915@pci:0000:00:02.0 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Manny <manuel+rhbz> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | low | ||
| Version: | 10 | CC: | kernel-maint |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-07-27 16:59:34 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Description of problem: System experiences slowdown from too many interrupts being fired. CPU does not go back to low frequency. GPU and CPU temperature elevated. Version-Release number of selected component (if applicable): Linux thinx 2.6.27.12-170.2.5.fc10.x86_64 #1 SMP Wed Jan 21 01:33:24 EST 2009 x86_64 x86_64 x86_64 GNU/Linux How reproducible: Tends to be triggered by activities that tend to use the graphics display highly. Such as flash videos. Steps to Reproduce: 1. Turn on computer 2. Use system normally. Actual results: Expected results: System should perform normally. Interrupt should not be the top causes for cpu wakeups. Additional info: Powertop: PowerTOP version 1.10 (C) 2007 Intel Corporation Cn Avg residency P-states (frequencies) C0 (cpu running) (58.6%) 1.61 Ghz 17.8% C0 0.0ms ( 0.0%) 1.60 Ghz 19.4% C1 0.2ms ( 0.0%) 1200 Mhz 62.7% C2 0.0ms ( 0.7%) 800 Mhz 0.0% C3 1.6ms (40.8%) Wakeups-from-idle per second : 2404.5 interval: 10.0s no ACPI power usage estimate available Top causes for wakeups: 99.3% (68288.4) <interrupt> : ahci, uhci_hcd:usb5, yenta, i915@pci:0000:00:02.0 0.2% (155.2) <kernel IPI> : Rescheduling interrupts 0.1% ( 94.9) <interrupt> : uhci_hcd:usb3, eth0 0.1% ( 83.0) <interrupt> : acpi 0.0% ( 27.1) USB device 5-1 : USB Receiver (Logitech) 0.0% ( 19.9) gnome-do : futex_wait (hrtimer_wakeup) ------------------------- cat /proc/interrupts CPU0 CPU1 0: 1803156 129310 IO-APIC-edge timer 1: 15 2299 IO-APIC-edge i8042 5: 4 6 IO-APIC-edge serial 8: 0 1 IO-APIC-edge rtc0 9: 367 317971 IO-APIC-fasteoi acpi 12: 92 72 IO-APIC-edge i8042 16: 2169 243652699 IO-APIC-fasteoi ahci, uhci_hcd:usb5, yenta, i915@pci:0000:00:02.0 17: 175559 206 IO-APIC-fasteoi uhci_hcd:usb6, firewire_ohci, HDA Intel, iwlagn 18: 0 0 IO-APIC-fasteoi mmc0 19: 1 1 IO-APIC-fasteoi ehci_hcd:usb2 20: 541163 15 IO-APIC-fasteoi uhci_hcd:usb3, eth0 21: 0 0 IO-APIC-fasteoi uhci_hcd:usb4 22: 70328 2 IO-APIC-fasteoi ehci_hcd:usb1 NMI: 0 0 Non-maskable interrupts LOC: 482787 1775606 Local timer interrupts RES: 689847 138604 Rescheduling interrupts CAL: 10868 236 function call interrupts TLB: 1101 1761 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts SPU: 0 0 Spurious interrupts ERR: 0