Slow performance for disk access in virtual machine

RESOLVED FIXED

Status

mozilla.org Graveyard
Server Operations
RESOLVED FIXED
9 years ago
3 years ago

People

(Reporter: robarnold, Assigned: phong)

Tracking

Details

(Reporter)

Description

9 years ago
I notice that whenever I open a file in the vm (via vim or some other program), the cpu usage (and kernel times) shoot up to 100% and make the rest of the vm very unusable.

Although I expect IO to be expensive in a VM, this is excessive and severely affects usability - I am back to doing what development I can on my native machine.

Complicating debugging is that the issue is transient - currently the VM is responsive while it is building but at other times it will take upwards of 30 seconds to open a new msys terminal (perhaps the disk cache is hiding the problem now that the VM is warm from the build).
Phong which ESX host and storage is Rob's Vm running on ? How's the load there ?
(Assignee)

Comment 2

9 years ago
eql01-dev01.  it's on the slower SATA array.
Should this be in Release Eng?  I would think that it might get more attention from server ops...
Assignee: nobody → server-ops
Component: Release Engineering → Server Operations
QA Contact: release → mrz

Comment 4

9 years ago
Which VM?

Updated

9 years ago
Assignee: server-ops → thardcastle
(Reporter)

Comment 5

9 years ago
sm-rarnold-test.mozilla.com (10.2.76.146)

Comment 6

9 years ago
The host this VM is on is somewhat overloaded. We'll move this over the another ESX host to improve the performance.

Can this be done at any time? It will be some brief downtime.
(In reply to comment #6)
> The host this VM is on is somewhat overloaded. We'll move this over the another
> ESX host to improve the performance.
> 
> Can this be done at any time? It will be some brief downtime.

This is not a production VM. Its being used for experiment by robarnold, so you could take VM down anytime that robarnold says is ok.

Updated

9 years ago
Assignee: thardcastle → phong
(Reporter)

Comment 8

9 years ago
You can take it down now. Once this bug is resolved, I'll resume work on the SDK.
(Reporter)

Comment 9

9 years ago
Any update here? Would really like this to assist the Windows 7 SDK bringup.
Blocks: 505504
dropped the ball, moving it right now.
VM moved and powering back up.  Re-open if you're still performance issues.
Status: NEW → RESOLVED
Last Resolved: 9 years ago
Resolution: --- → FIXED
Product: mozilla.org → mozilla.org Graveyard
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