[Qemu-devel] Why do rsync and scp stall when transferring files from host to guest?

[Qemu-devel] Why do rsync and scp stall when transferring files from host to guest?

[Atoosah]

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When I scp or rsync a file several MBs from host Linux machine to guest
Linux machine (both CentOS), the transfer starts at several hundred KB/s but
slows down pretty quickly until it eventually "stalls". I've found a strange
solution which is that if the guest machine pings the host at intervals then
it keeps the connection from stalling (with a rate of about 10 to 20 KB/s).
pinging works fine, but why does secure transfer have problems with
maintaining a stable connection when transfering a single decent sized file?

I've tried rebooting the machine to no avail :-(

scp command used: $scp somefile.gz user@10.0.2.15:/directory_path/

rsync command used: $rsync -av somefile.gz --rsh=ssh user@10.0.2.15:
/directory_path/


thank you,
Atoosah

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