Bug 215535
Summary: | The network speed from xen0 to HVM guest is slow | ||
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Product: | Red Hat Enterprise Linux 5 | Reporter: | Chris Lalancette <clalance> |
Component: | kernel | Assignee: | Herbert Xu <herbert.xu> |
Status: | CLOSED NOTABUG | QA Contact: | Brian Brock <bbrock> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 5.0 | CC: | tao, xen-maint |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2007-05-23 22:47:47 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
Chris Lalancette
2006-11-14 15:56:49 UTC
Is this with qemu? If so please try again with the PV netfront driver. qemu drivers are known to be slow due the high emulation overhead. The PV driver isn't currently part of the baremetal RHEL5 kernel. Yes you can build it for RHEL5 without rebuilding the entire kernel. While SMP and 32/64 support may indeed be lacking at this point in time, they're being addressed upstream. On the other hand, there really isn't much that can be done to bring qemu performance to the level of PV performance. For all practical purposes, if you care about performance you should be using a PV kernel with RHEL5. |