diff options
Diffstat (limited to 'contrib/systemtap/id_perf.stp')
| -rw-r--r-- | contrib/systemtap/id_perf.stp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/contrib/systemtap/id_perf.stp b/contrib/systemtap/id_perf.stp new file mode 100644 index 0000000..a778975 --- /dev/null +++ b/contrib/systemtap/id_perf.stp @@ -0,0 +1,167 @@ +global in_id + +global runtime_start +global runtime_end + +global num_transactions +global time_in_transactions +global trans_start_time +global trans_end_time + +global time_in_ldb +global ldb_start_time +global ldb_end_time + +global num_ldap_searches +global time_in_ldap +global ldap_start_time +global ldap_end_time + +global acct_req_types +global acct_req_times +global acct_req_rtime + +global bts + +function print_acct_req(req_type) +{ + str_req = acct_req_desc(req_type) + printf("\tNumber of %s requests: %d\n", str_req, acct_req_types[req_type]) + printf("\tTime spent in %s requests: %d\n", str_req, acct_req_times[req_type]) + printf("\n") +} + +function print_report() +{ + max_trans_time = 0 + max_trans_time_bt = "" + + total_time = runtime_end - runtime_start + printf("Total run time of id was: %d ms\n", total_time) + printf("Number of zero-level cache transactions: %d\n", num_transactions) + printf("Time spent in level-0 sysdb transactions: %d ms\n", time_in_transactions) + printf("Time spent writing to LDB: %d ms\n", time_in_ldb) + printf("Number of LDAP searches: %d\n", num_ldap_searches) + printf("Time spent waiting for LDAP: %d ms\n", time_in_ldap) + + printf("LDAP searches breakdown:\n") + foreach (req_type in acct_req_types) { + print_acct_req(req_type) + } + + printf("Unaccounted time: %d ms\n", + total_time - time_in_transactions - time_in_ldap) + + printf("sysdb transaction breakdown:\n") + foreach ([b] in bts) { + printf("%d hits of transaction %s\n", @count(bts[b]), b) + printf("avg:%d min: %d max: %d sum: %d\n\n", + @avg(bts[b]), @min(bts[b]), @max(bts[b]), @sum(bts[b])) + + if (@max(bts[b]) > max_trans_time) { + max_trans_time = @max(bts[b]) + max_trans_time_bt = b + } + } + + if (max_trans_time > 0) { + printf("The most expensive transaction breakdown, per transaction:\n") + print(@hist_linear(bts[max_trans_time_bt], 0, 500, 50)) + } +} + +probe process("/usr/bin/id").begin +{ + in_id = 1 + + num_transactions = 0 + time_in_transactions = 0 + + num_ldap_searches = 0 + time_in_ldap = 0 + time_in_ldb = 0 + + acct_req_types[0x0001] = 0 + acct_req_types[0x0002] = 0 + acct_req_types[0x0003] = 0 + + acct_req_times[0x0001] = 0 + acct_req_times[0x0002] = 0 + acct_req_times[0x0003] = 0 + + acct_req_rtime[0x0001] = 0 + acct_req_rtime[0x0002] = 0 + acct_req_rtime[0x0003] = 0 + + runtime_start = gettimeofday_ms() +} + +probe process("/usr/bin/id").end +{ + in_id = 0 + + runtime_end = gettimeofday_ms() + print_report() + + delete bts +} + +probe sssd_transaction_start +{ + if (nesting == 0 && in_id == 1) { + num_transactions++ + trans_start_time = gettimeofday_ms() + } +} + +probe sssd_transaction_commit_before +{ + if (nesting == 0 && in_id == 1) { + ldb_start_time = gettimeofday_ms() + } +} + +probe sssd_transaction_commit_after +{ + if (nesting == 0 && in_id == 1) { + ldb_end_time = gettimeofday_ms() + time_in_ldb += (ldb_end_time-ldb_start_time) + + trans_end_time = gettimeofday_ms() + time_in_transactions += (trans_end_time-trans_start_time) + + bt = sprint_ubacktrace() + bts[bt] <<< (trans_end_time-trans_start_time) + } +} + +probe sdap_search_send +{ + if (in_id == 1) { + num_ldap_searches++ + ldap_start_time = gettimeofday_ms() + } +} + +probe sdap_search_recv +{ + if (in_id == 1) { + ldap_end_time = gettimeofday_ms() + time_in_ldap += (ldap_end_time-ldap_start_time) + } +} + +probe sdap_acct_req_send +{ + if (in_id == 1) { + acct_req_types[entry_type]++ + acct_req_rtime[entry_type] = gettimeofday_ms() + } +} + +probe sdap_acct_req_recv +{ + if (in_id == 1) { + acct_req_times[entry_type] += (gettimeofday_ms() - acct_req_rtime[entry_type]) + } +} |