The TCP Nagle algorithm has undesired interaction with NRPC. The 'DEBUG_PD_NAGLE_OFF' setting will explicitly disable the Nagle algorithm
. The 'EnableNagle' setting will explicitly enable the Nagle algorithm.
Prior to Domino 8.5 the algorithm is on by default.
As of 8.5 the algorithm is off by default.
For Domino releases prior to Domino 8.5, have DEBUG_PD_NAGLE_OFF=1 present in the notes.ini.
For Domino 8.5 and beyond, the algorithm is already off by default, so parameter can be removed.
This issue was originally reported for all platforms, except Windows. The original test cases showed no measurable difference under Windows when this setting is on or off. Subsequent customer experimentation for Domino version 6.5.4 under Windows reports a measurable response time improvement when DEBUG_PD_NAGLE_OFF=1. Furthermore, the Nagle algorithm is disabled by default for D8.5 running under any Operating System, indicating that DEBUG_PD_NAGLE_OFF=1 is good for Domino versions earlier than 8.5, running under every OS.
Downloading attachments from Domino R5 on AIX takes a long time
Domino Configuration Tuner:
These settings are included in the DCT
catalog of best practices.