https://community.hpe.com/t5/operating-system-hp-ux/msgmnb/m-p/6838557#M489323 <P>Team,</P><P>Tunable msgmnb<BR />Description Maximum size of a message queue (bytes)<BR />Module pm_usync<BR />Current Value 16384 [Default]<BR />Value at Next Boot 16384 [Default]<BR />Value at Last Boot 16384<BR />Default Value 16384<BR />Constraints msgmnb &gt;= 0<BR />msgmnb &lt;= 67108864<BR />Can Change Immediately or at Next Boot</P><P>when checked through SAM usage is shown as -- Module is pm_sync</P><P>Cant we check whats the current usage of this param ? Not visible in kcusage -l</P> Thu, 03 Mar 2016 06:28:24 GMT chindi 2016-03-03T06:28:24Z https://community.hpe.com/t5/operating-system-hp-ux/msgmnb/m-p/6838557#M489323 <P>Team,</P><P>Tunable msgmnb<BR />Description Maximum size of a message queue (bytes)<BR />Module pm_usync<BR />Current Value 16384 [Default]<BR />Value at Next Boot 16384 [Default]<BR />Value at Last Boot 16384<BR />Default Value 16384<BR />Constraints msgmnb &gt;= 0<BR />msgmnb &lt;= 67108864<BR />Can Change Immediately or at Next Boot</P><P>when checked through SAM usage is shown as -- Module is pm_sync</P><P>Cant we check whats the current usage of this param ? Not visible in kcusage -l</P> Thu, 03 Mar 2016 06:28:24 GMT https://community.hpe.com/t5/operating-system-hp-ux/msgmnb/m-p/6838557#M489323 chindi 2016-03-03T06:28:24Z https://community.hpe.com/t5/operating-system-hp-ux/msgmnb/m-p/6839336#M489336 <P>Got reply from HP,</P><P>Thread closed.</P><P>Kernel parameter msgmnb (maximum number of bytes on a single System V IPC message queue) can be changed online and can be reverted back if needed.</P><P>&nbsp;</P><P># kctune -v msgmnb</P><P>Tunable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; msgmnb</P><P>Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Maximum size of a message queue (bytes)</P><P>Module&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pm_usync</P><P>Current Value&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16384 [Default]</P><P>Value at Next Boot&nbsp; 16384 [Default]</P><P>Value at Last Boot&nbsp; 16384</P><P>Default Value&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16384</P><P>Constraints&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; msgmnb &gt;= 0</P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; msgmnb &lt;= 67108864</P><P>Can Change&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Immediately or at Next Boot</P> Mon, 07 Mar 2016 05:28:55 GMT https://community.hpe.com/t5/operating-system-hp-ux/msgmnb/m-p/6839336#M489336 chindi 2016-03-07T05:28:55Z