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>
The name of the hcall for opcode 432 is "H_DISABLE_AND_GET". This typo
was fixed in the main file [1] in the commit 0f10228c6ff6 ("KVM: PPC: Fix
typo on H_DISABLE_AND_GET hcall").
[1]: arch/powerpc/include/asm/hvcall.h
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Update the hcall list with the newer hcalls in PPC. [1]: github.com/torvalds/linux/blob/master/arch/powerpc/include/asm/hvcall.h Signed-off-by: Gautam Menghani <gautam@linux.ibm.com> Reviewed-by: Shivani Nittor <shivani@linux.ibm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Support both Python2 and Python3 in the powerpc-hcalls.py script There may be differences in the ordering of output lines due to differences in dictionary ordering etc. However the format within lines should be unchanged. The use of 'from __future__' implies the minimum supported Python2 version is now v2.6 Signed-off-by: Tony Jones <tonyj@suse.de> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Link: http://lkml.kernel.org/r/20190222230619.17887-10-tonyj@suse.de Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add python script to show hypervisor call statistics. Ex,
# perf record -a -e "{powerpc:hcall_entry,powerpc:hcall_exit}"
# perf script -s scripts/python/powerpc-hcalls.py
hcall count min(ns) max(ns) avg(ns)
--------------------------------------------------------------------
H_RANDOM 82 838 1164 904
H_PUT_TCE 47 1078 5928 2003
H_EOI 266 1336 3546 1654
H_ENTER 28 1646 4038 1952
H_PUT_TCE_INDIRECT 230 2166 18168 6109
H_IPI 238 1072 3232 1688
H_SEND_LOGICAL_LAN 42 5488 21366 7694
H_STUFF_TCE 294 986 6210 3591
H_XIRR 266 2286 6990 3783
H_PROTECT 10 2196 3556 2555
H_VIO_SIGNAL 294 1028 2784 1311
H_ADD_LOGICAL_LAN_BUFFER 53 1978 3450 2600
H_SEND_CRQ 77 1762 7240 2447
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20180605124801.17210-1-ravi.bangoria@linux.ibm.com
[ Fixup typo: table_loockup -> table_lookup ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>