perf script powerpc: Python script for hypervisor call statistics

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>

1 files changed, 200 insertions, 0 deletions

diff --git a/tools/perf/scripts/python/powerpc-hcalls.py b/tools/perf/scripts/python/powerpc-hcalls.py
new file mode 100644
index 000000000000..00e0e7476e55
--- /dev/null
+++ b/tools/perf/scripts/python/powerpc-hcalls.py
@@ -0,0 +1,200 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2018 Ravi Bangoria, IBM Corporation
+#
+# Hypervisor call statisics
+
+import os
+import sys
+
+sys.path.append(os.environ['PERF_EXEC_PATH'] + \
+        '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
+
+from perf_trace_context import *
+from Core import *
+from Util import *
+
+# output: {
+#       opcode: {
+#               'min': minimum time nsec
+#               'max': maximum time nsec
+#               'time': average time nsec
+#               'cnt': counter
+#       } ...
+# }
+output = {}
+
+# d_enter: {
+#       cpu: {
+#               opcode: nsec
+#       } ...
+# }
+d_enter = {}
+
+hcall_table = {
+        4: 'H_REMOVE',
+        8: 'H_ENTER',
+        12: 'H_READ',
+        16: 'H_CLEAR_MOD',
+        20: 'H_CLEAR_REF',
+        24: 'H_PROTECT',
+        28: 'H_GET_TCE',
+        32: 'H_PUT_TCE',
+        36: 'H_SET_SPRG0',
+        40: 'H_SET_DABR',
+        44: 'H_PAGE_INIT',
+        48: 'H_SET_ASR',
+        52: 'H_ASR_ON',
+        56: 'H_ASR_OFF',
+        60: 'H_LOGICAL_CI_LOAD',
+        64: 'H_LOGICAL_CI_STORE',
+        68: 'H_LOGICAL_CACHE_LOAD',
+        72: 'H_LOGICAL_CACHE_STORE',
+        76: 'H_LOGICAL_ICBI',
+        80: 'H_LOGICAL_DCBF',
+        84: 'H_GET_TERM_CHAR',
+        88: 'H_PUT_TERM_CHAR',
+        92: 'H_REAL_TO_LOGICAL',
+        96: 'H_HYPERVISOR_DATA',
+        100: 'H_EOI',
+        104: 'H_CPPR',
+        108: 'H_IPI',
+        112: 'H_IPOLL',
+        116: 'H_XIRR',
+        120: 'H_MIGRATE_DMA',
+        124: 'H_PERFMON',
+        220: 'H_REGISTER_VPA',
+        224: 'H_CEDE',
+        228: 'H_CONFER',
+        232: 'H_PROD',
+        236: 'H_GET_PPP',
+        240: 'H_SET_PPP',
+        244: 'H_PURR',
+        248: 'H_PIC',
+        252: 'H_REG_CRQ',
+        256: 'H_FREE_CRQ',
+        260: 'H_VIO_SIGNAL',
+        264: 'H_SEND_CRQ',
+        272: 'H_COPY_RDMA',
+        276: 'H_REGISTER_LOGICAL_LAN',
+        280: 'H_FREE_LOGICAL_LAN',
+        284: 'H_ADD_LOGICAL_LAN_BUFFER',
+        288: 'H_SEND_LOGICAL_LAN',
+        292: 'H_BULK_REMOVE',
+        304: 'H_MULTICAST_CTRL',
+        308: 'H_SET_XDABR',
+        312: 'H_STUFF_TCE',
+        316: 'H_PUT_TCE_INDIRECT',
+        332: 'H_CHANGE_LOGICAL_LAN_MAC',
+        336: 'H_VTERM_PARTNER_INFO',
+        340: 'H_REGISTER_VTERM',
+        344: 'H_FREE_VTERM',
+        348: 'H_RESET_EVENTS',
+        352: 'H_ALLOC_RESOURCE',
+        356: 'H_FREE_RESOURCE',
+        360: 'H_MODIFY_QP',
+        364: 'H_QUERY_QP',
+        368: 'H_REREGISTER_PMR',
+        372: 'H_REGISTER_SMR',
+        376: 'H_QUERY_MR',
+        380: 'H_QUERY_MW',
+        384: 'H_QUERY_HCA',
+        388: 'H_QUERY_PORT',
+        392: 'H_MODIFY_PORT',
+        396: 'H_DEFINE_AQP1',
+        400: 'H_GET_TRACE_BUFFER',
+        404: 'H_DEFINE_AQP0',
+        408: 'H_RESIZE_MR',
+        412: 'H_ATTACH_MCQP',
+        416: 'H_DETACH_MCQP',
+        420: 'H_CREATE_RPT',
+        424: 'H_REMOVE_RPT',
+        428: 'H_REGISTER_RPAGES',
+        432: 'H_DISABLE_AND_GETC',
+        436: 'H_ERROR_DATA',
+        440: 'H_GET_HCA_INFO',
+        444: 'H_GET_PERF_COUNT',
+        448: 'H_MANAGE_TRACE',
+        468: 'H_FREE_LOGICAL_LAN_BUFFER',
+        472: 'H_POLL_PENDING',
+        484: 'H_QUERY_INT_STATE',
+        580: 'H_ILLAN_ATTRIBUTES',
+        592: 'H_MODIFY_HEA_QP',
+        596: 'H_QUERY_HEA_QP',
+        600: 'H_QUERY_HEA',
+        604: 'H_QUERY_HEA_PORT',
+        608: 'H_MODIFY_HEA_PORT',
+        612: 'H_REG_BCMC',
+        616: 'H_DEREG_BCMC',
+        620: 'H_REGISTER_HEA_RPAGES',
+        624: 'H_DISABLE_AND_GET_HEA',
+        628: 'H_GET_HEA_INFO',
+        632: 'H_ALLOC_HEA_RESOURCE',
+        644: 'H_ADD_CONN',
+        648: 'H_DEL_CONN',
+        664: 'H_JOIN',
+        676: 'H_VASI_STATE',
+        688: 'H_ENABLE_CRQ',
+        696: 'H_GET_EM_PARMS',
+        720: 'H_SET_MPP',
+        724: 'H_GET_MPP',
+        748: 'H_HOME_NODE_ASSOCIATIVITY',
+        756: 'H_BEST_ENERGY',
+        764: 'H_XIRR_X',
+        768: 'H_RANDOM',
+        772: 'H_COP',
+        788: 'H_GET_MPP_X',
+        796: 'H_SET_MODE',
+        61440: 'H_RTAS',
+}
+
+def hcall_table_lookup(opcode):
+        if (hcall_table.has_key(opcode)):
+                return hcall_table[opcode]
+        else:
+                return opcode
+
+print_ptrn = '%-28s%10s%10s%10s%10s'
+
+def trace_end():
+        print print_ptrn % ('hcall', 'count', 'min(ns)', 'max(ns)', 'avg(ns)')
+        print '-' * 68
+        for opcode in output:
+                h_name = hcall_table_lookup(opcode)
+                time = output[opcode]['time']
+                cnt = output[opcode]['cnt']
+                min_t = output[opcode]['min']
+                max_t = output[opcode]['max']
+
+                print print_ptrn % (h_name, cnt, min_t, max_t, time/cnt)
+
+def powerpc__hcall_exit(name, context, cpu, sec, nsec, pid, comm, callchain,
+                        opcode, retval):
+        if (d_enter.has_key(cpu) and d_enter[cpu].has_key(opcode)):
+                diff = nsecs(sec, nsec) - d_enter[cpu][opcode]
+
+                if (output.has_key(opcode)):
+                        output[opcode]['time'] += diff
+                        output[opcode]['cnt'] += 1
+                        if (output[opcode]['min'] > diff):
+                                output[opcode]['min'] = diff
+                        if (output[opcode]['max'] < diff):
+                                output[opcode]['max'] = diff
+                else:
+                        output[opcode] = {
+                                'time': diff,
+                                'cnt': 1,
+                                'min': diff,
+                                'max': diff,
+                        }
+
+                del d_enter[cpu][opcode]
+#       else:
+#               print "Can't find matching hcall_enter event. Ignoring sample"
+
+def powerpc__hcall_entry(event_name, context, cpu, sec, nsec, pid, comm,
+                         callchain, opcode):
+                if (d_enter.has_key(cpu)):
+                        d_enter[cpu][opcode] = nsecs(sec, nsec)
+                else:
+                        d_enter[cpu] = {opcode: nsecs(sec, nsec)}