On Fri, Jun 11, 2021 at 09:13:51AM +0200, Uwe Kleine-König wrote: > On a customer site we're experience a bit over 1% UDP packet loss. When > wiresharking an NFS transfer of a kernel image (with the goal to boot > via NFS) I saw 64 of 2555 RPC calls staying unanswered. With the current > timeout setting each of them introduces a delay of 2 seconds and the > whole transfer takes 137s. With the timeout reduced to 0.1s the transfer > time is not optimal (going down to approx 15 seconds) but at least it > becomes bearable. > > To still cope with a slow network (in contrast to an unreliable as > pictured above) increase NFS_MAX_RESEND to keep NFS_TIMEOUT * > NFS_MAX_RESEND (which defines the overall timeout before aborting the > transfer) constant. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Acked-by: Gavin Schenk <g.schenk@xxxxxxxxxxxx> I have tested this on the customer site with 1% UDP loss :). I am working with the IT department to get a better network. Until that happens, this patch helps me successfully boot NFS. Regards Gavin Schenk _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
