2 ms·
I'm curious why the LRO improvement gave such a large overall boost, as the workload should be more about sending than receiving. Are the incoming TCP ACKs or T
by zurn 9y ago
I'm curious why the LRO improvement gave such a large overall boost, as the workload should be more about sending than receiving. Are the incoming TCP ACKs or TLS control traffic so frequent that you can get 15% more total throughput with this "2 segments in one batch" driver imporvement? Naively you'd think that receiving wouldn't even be 15% of the work.
- drewg123 9y agoAt 90Gbs, we're sending about 8Mpps (which is mitigated by TSO). However, we're receiving at about 2.2Mpps. Until the RSS based LRO, about 2Mpps was going all the way up the stack into TCP. After the RSS based LRO, that was cut in half.