Opened 15 years ago
Last modified 8 years ago
#3834 closed defect
OpenSolaris guest has high system time overhead — at Initial Version
| Reported by: | Scott Fehrman | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 2.2.0 |
| Keywords: | opensolaris tsc_read gethrtime | Cc: | |
| Guest type: | Solaris | Host type: | other |
Description
We created an image using OpenSolaris 2008.11 (32-bit), MySQL, OpenDS, Glassfish to support applications. After the image boots, the apps have started and "steady state" is reached, the image has 30-35% system time constantly being consumed. We've seen this on vbox 2.0.x, 2.1.x, and 2.2.x.
We've seen this happen on the following Host OS platforms: OpenSolaris on Sun Ultra40 (AMD) Mac OS X on MacBookPro (Intel) Linux (Ubuntu 8.10) on Toshiba Laptop (Intel) Windows XP on Acer Laptop (AMD)
I "profiled the kernel" using a dtrace script and the kernel is calling: unixtsc_read / genunixgethrtime_unscaled A LOT.
I'll attach the output of the script and the dtrace script
This might be related to bug # 894
Change History (2)
by , 15 years ago
| Attachment: | vbox_kernel_dtrace_profile.txt added |
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by , 15 years ago
| Attachment: | vbox_kernel_dtrace_profile.2.txt added |
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