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s390/Documentation: improve sort command for trace buffer

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When s390 traces with hex_ascii or sprintf view are
extracted and sorted, use the sort option -s (stable)
to avoid multiple lines with the same time stamp being
sorted using the rest of the line as secondary key.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Thomas Richter 2016-06-08 13:58:22 +02:00 committed by Martin Schwidefsky
parent 72a9b02d3b
commit 1b8b9c81a9
1 changed files with 1 additions and 1 deletions
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2
Documentation/s390/s390dbf.txt
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@ -405,7 +405,7 @@ Example:
> ls /sys/kernel/debug/s390dbf/dasd > ls /sys/kernel/debug/s390dbf/dasd
flush hex_ascii level pages raw flush hex_ascii level pages raw
> cat /sys/kernel/debug/s390dbf/dasd/hex_ascii | sort +1 > cat /sys/kernel/debug/s390dbf/dasd/hex_ascii | sort -k2,2 -s
00 00974733272:680099 2 - 02 0006ad7e 07 ea 4a 90 | .... 00 00974733272:680099 2 - 02 0006ad7e 07 ea 4a 90 | ....
00 00974733272:682210 2 - 02 0006ade6 46 52 45 45 | FREE 00 00974733272:682210 2 - 02 0006ade6 46 52 45 45 | FREE
00 00974733272:682213 2 - 02 0006adf6 07 ea 4a 90 | .... 00 00974733272:682213 2 - 02 0006adf6 07 ea 4a 90 | ....