[ofw] ibv_get_cq_event()

Prasanna Kumar prasanna.vv at oracle.com
Fri Aug 20 05:59:34 PDT 2010


Hi,
I observe ibv_get_cq_event() gets CQ event signal from COMP Channel 
thread. This results in 2 levels of signal hop for each CQ event. I find 
this latency is visible for small size ( < 4K) data transfers.
 Has anyone seen this issue ?  Instead, is it possible for 
ibv_get_cq_event() get CQ event directly from hw driver to avoid this 
latency ?

Regards,
Prasanna



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