Description of problem: NFS sunrpc module allows one to specify sunrpc.tcp_slot_table_entries parameter. This parameter is set to default of 16 in sunrpc module AFAIK. This parameter can be put in /etc/sysctl.conf. Putting a value of say 64 and rebooting the machine causes the value of this parameter as observed by sysctl -a | grep sunrpc to show up as 16. When setting it up manually with sysctl -w sunrpc.. it works fine but if put in sysctl.conf it doesn't. Version-Release number of selected component (if applicable): Redhat Enterprise Linux 4 update 3 How reproducible: Description of the problem is sufficient to explain the reproduction Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: This problem was observed at highly escalated performance problem at Yahoo a NetApp customer that deploys their application on Redhat linux on Oracle database on opteron hardware. We have observed that from the init script the sysctl is invoked only in S10network script. S18/S19 level rcp init script issues a modprobe sunrpc which probably load the sunrpc module. It is likely that S10network sets this value correctly but sunrpc module upon load up causes this value to be reset back to 16. A simple workaround of adding /sbin/sysctl -p line in S25netfs has been provided to yahoo. But they would like a fix eventually from Red Hat.
Please mark this as duplicate of 189310. I submitted twice.. my bad.
*** This bug has been marked as a duplicate of 189310 ***