diff options
Diffstat (limited to 'sys-utils/lsmem.1')
| -rw-r--r-- | sys-utils/lsmem.1 | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/sys-utils/lsmem.1 b/sys-utils/lsmem.1 index c664273f0..af65c2abb 100644 --- a/sys-utils/lsmem.1 +++ b/sys-utils/lsmem.1 @@ -10,19 +10,29 @@ status. The listed memory blocks correspond to the memory block representation in sysfs. The command also shows the memory block size and the amount of memory in online and offline state. -The default output compatible with original implementaion from s390-tools, but +The default output compatible with original implementation from s390-tools, but it's strongly recommended to avoid using default outputs in your scripts. Always explicitly define expected columns by using the \fB\-\-output\fR option together with a columns list in environments where a stable output is required. +The \fBlsmem\fP command lists a new memory range always when the current memory +block distinguish from the previous block by STATE, REMOVABLE, NODE or ZONES +attribute. This default behavior is possible to override by the +\fB\-\-split\fR option (e.g. \fBlsmem \-\-split=STATE,ZONES\fR). The special +word "none" may be used to ignore all differences between memory blocks and to +create as large as possible continuous ranges. The opposite semantic is +\fB\-\-all\fR to list individual memory blocks. The default split policy is +subject to change. Always explicitly use \fB\-\-split\fR in environments where +a stable output is required. + +Note that some output columns may provide inaccurate information if a split policy +forces \fBlsmem\fP to ignore diffrences in some attributes. For example if you +merge removable and non-removable memory blocks to the one range than all +the range will be marked as non-removable on \fBlsmem\fP output. + Not all columns are supported on all systems. If an unsupported column is specified, \fBlsmem\fP prints the column but does not provide any data for it. -The number of output entries (memory ranges) maybe be influenced by specified -columns. The lsmem command shows larger memory ranges if the blocks in the -range do not distinguish in output columns. For example RANGE maybe be -different if the command output contains column ZONES (lsmem -o +ZONES). - Use the \fB\-\-help\fR option to see the columns description. .SH OPTIONS @@ -57,6 +67,11 @@ All potentially unsafe characters are hex-escaped (\\x<code>). Produce output in raw format. All potentially unsafe characters are hex-escaped (\\x<code>). .TP +.BR \-S , " \-\-split " \fIlist\fP +Specify which columns (attributes) use to split memory blocks to ranges. The +supported columns are STATE, REMOVABLE, NODE and ZONES, or "none". The another columns are +silently ignored. For more details see DESCRIPTION above. +.TP .BR \-s , " \-\-sysroot " \fIdirectory\fP Gather memory data for a Linux instance other than the instance from which the \fBlsmem\fP command is issued. The specified \fIdirectory\fP is the system |