[Xen-devel] Increase txqueuelen of vif devices

[Miroslav Rezanina <mrezanin@xxxxxxxxxx>]

During performance testing we find out that increasing txqueuelen can increase 
throughput significantly. Following table shows our results:

txQlen     netperf message size
        512 byte        4096 byte
-----------------------------------
32      1634.13          8402.32
64      1292.05         14198.48
128     4142.58         14677.39
256     4439.77         14626.80
512     5251.48         14809.59
1024    4875.96         15358.55


Based on this result, shouldn't be good idea to change default txqueuelen? 
Physical devices uses txqueuelen of 1000.

Regard,
Mirek
-- 
Miroslav Rezanina
Software Engineer - Virtualization Team - XEN kernel


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel