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Re: Slow Apt
Hovers around 10.5 wa and 0.2 to 0.3 in st.
Top processes are vifs with a loop4 popping up to the top once in
a while along with rcu_sched.
I would guess the loop4 is the mounted disk image for the DomU.
So, after the 'apt-get update' finished, the wa dropped to 0.4 and
st stayed at 0.2
On 6/10/21 4:29 PM, Chris Myers wrote:
Out of curiosity, how does "top" look when it's
running? Especially things like "wa" (IOWait) and "st" (steal)?
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.
Setup:
E3-1230 V2 @ 3.30GHz
16 GB RAM
Hard drives are spinning disk. 2 TB drives (EXT4)
DomUs are using Disk.Img for their disk.
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