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Slow Apt

First, hello.  New to the list, but I've been using Xen Hypervisor for a long time.

I'm curious if anyone else has had this issue.

I recently upgraded a server from Debian Squeeze to Buster with kernel 4.19.0-16-amd64 and found that apt/aptitude commands are slow in response.

For example, 'apt-get update' can take 10 minutes to complete, hanging up on certain parts of the downloads either at 0% or 90%.    This is something that normally takes a few seconds.

Even the DomU's suffer the same issue.

On another server I have kernel 4.19.0-14-amd64 and it seems to be running just fine most of the time.  I do get some hiccups, but not nearly as much as the above upgraded server.

I've also noticed that writes will sometimes pause for several seconds, specially when transferring large files.


E3-1230 V2 @ 3.30GHz


Hard drives are spinning disk.  2 TB drives (EXT4)

DomUs are using Disk.Img for their disk.



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