Well, kernel socket buffer may block if the network subsystem was not
able to deliver the data. That is why increasing net.core.wmem_default
and net.core.wmem_max are being checked during Oracle installation.
On 10/9/19 3:13 PM, kyle Hailey wrote:
And yes, Tanel is the expert here, see SQL*Net message to client <http://blog.tanelpoder.com/2008/02/10/sqlnet-message-to-client-vs-sqlnet-more-data-to-client>--
"I”ll reiterate that both |SQL*Net message to client| and |SQL*Net
more data to client| waits only record the time it took to write
the return data from Oracle’s userland SDU buffer to OS
kernel-land TCP socket buffer. "