perf scripts: Add configurable sorting option to powerpc-hcalls

The powerpc-hcalls.py script currently prints hypercall
statistics in a fixed sort order based on the number of
hcall occurrences, making it difficult to analyze hcalls
from different execution characteristics.

Add support for runtime-configurable sorting so users
can order hypercall statistics by count, minimum
latency, maximum latency, or average latency using
a --sort option.

Parse arguments through sys.argv to support perf script
argument passing semantics.

Example:

perf record -a -e powerpc* sleep 10

perf script -s ./powerpc-hcalls.py -i ./perf.data -- --sort=max

SORT KEY = max
hcall                            count   min(ns)   max(ns)   avg(ns)

H_SEND_LOGICAL_LAN                  47      7380     40148      8739
H_VIO_SIGNAL                       706       880     17454      1911
H_RANDOM                             1     15176     15176     15176
H_PUT_TCE_INDIRECT                   4      3032     10444      4956
H_ADD_LOGICAL_LAN_BUFFER           363      1250      8716      1534
H_SEND_CRQ                           8      2086      6846      3044
H_PUT_TCE                            9      1284      4932      2646
H_STUFF_TCE                         13      1620      3962      2358

This makes it easier to identify frequently occurring
or high-latency hypercalls depending on the analysis
being performed.

Signed-off-by: Shivani Nittor <shivani@linux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

0 files changed, 0 insertions, 0 deletions