msgmnb

[chindi]

Team,

Tunable msgmnb
Description Maximum size of a message queue (bytes)
Module pm_usync
Current Value 16384 [Default]
Value at Next Boot 16384 [Default]
Value at Last Boot 16384
Default Value 16384
Constraints msgmnb >= 0
msgmnb <= 67108864
Can Change Immediately or at Next Boot

when checked through SAM usage is shown as -- Module is pm_sync

Cant we check whats the current usage of this param ? Not visible in kcusage -l

[chindi · Accepted solution]

Got reply from HP,

Thread closed.

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.

# kctune -v msgmnb

Tunable             msgmnb

Description         Maximum size of a message queue (bytes)

Module              pm_usync

Current Value       16384 [Default]

Value at Next Boot  16384 [Default]

Value at Last Boot  16384

Default Value       16384

Constraints         msgmnb >= 0

                    msgmnb <= 67108864

Can Change          Immediately or at Next Boot