Opened 13 years ago
Closed 12 years ago
#9099 closed defect (fixed)
4 cores Guest Cpu saturation while host cpu load around 37%
| Reported by: | Gianks | Owned by: | |
|---|---|---|---|
| Component: | guest smp | Version: | VirtualBox 4.0.8 |
| Keywords: | CPU, LIMITED | Cc: | |
| Guest type: | Windows | Host type: | Linux |
Description
While the guest operating system reports 4 * 100% CPU usage in task manager, top over my linux host reports VirtualBox using just 150% of my total processor. looking at single cores no one reaches 100%.
I've read about poor multiprocessor guests performances in the manual but i don't understand if this behavior may be included or has to be considered "normal".
My Host:
OP: Dell e6410 - Debian Testing x32 with kernel 2.6.38-2-686-bigmem
CPU: Intel i5 M520, 2.4GHz
MEMORY: 8GB
Guest:
OP: Windows 7 x32
ASSIGNED CPU: 4
ASSIGNED MEMORY: 3072 MB
HDD: dynamic, 80Gb (now used 11,8GB)
Change History (3)
comment:1 by , 13 years ago
comment:2 by , 12 years ago
Still relevant with VBox 4.1.6? If so, please attach a VBox.log file of a 4.1.6 VM session.
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Assigning just 2 CPU to the guest, top shows VirtualBox Cpu usage around 180%. The overall guest performaces seems to be better with 2 cpu instead of 4.