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May 31, 2017 03:55
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let me know if i need to use any specific perf option | |
andrew@sherlock:~/dma/odbc_ibm$ perf record node --perf_basic_prof db2-bench-prepare-executeNonQuery.js | |
WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted, | |
check /proc/sys/kernel/kptr_restrict. | |
Samples in kernel functions may not be resolved if a suitable vmlinux | |
file is not found in the buildid cache or in the vmlinux path. | |
Samples in kernel modules won't be resolved at all. | |
If some relocation was applied (e.g. kexec) symbols may be misresolved | |
even with a suitable vmlinux or kallsyms file. | |
Cannot read kernel map | |
Couldn't record kernel reference relocation symbol | |
Symbol resolution may be skewed if relocation was used (e.g. kexec). | |
Check /proc/kallsyms permission or run as root. | |
100000 queries issued in 45.216 seconds, 2211/sec : Prepare - ExecuteNonQuery | |
connection closed | |
[ perf record: Woken up 47 times to write data ] | |
[ perf record: Captured and wrote 12.208 MB perf.data (315467 samples) ] | |
andrew@sherlock:~/dma/odbc_ibm$ perf report --stdio | |
Warning: | |
Kernel address maps (/proc/{kallsyms,modules}) were restricted. | |
Check /proc/sys/kernel/kptr_restrict before running 'perf record'. | |
As no suitable kallsyms nor vmlinux was found, kernel samples | |
can't be resolved. | |
Samples in kernel modules can't be resolved as well. | |
# To display the perf.data header info, please use --header/--header-only options. | |
# | |
# | |
# Total Lost Samples: 0 | |
# | |
# Samples: 315K of event 'cycles:pp' | |
# Event count (approx.): 96867149320 | |
# | |
# Overhead Command Shared Object Symbol | |
# ........ ............... .................... ................................................................................................................................................................ | |
# | |
28.48% node nodejs [.] 0x000000000088df3b | |
11.15% node nodejs [.] v8::internal::Heap::MoveElements | |
5.18% node nodejs [.] 0x000000000088df2c | |
4.83% node nodejs [.] 0x000000000088df34 | |
4.78% node nodejs [.] 0x000000000088df3f | |
4.71% node nodejs [.] 0x000000000088df20 | |
2.00% node libc-2.23.so [.] 0x000000000015f252 | |
1.52% node nodejs [.] 0x000000000088dfd8 | |
1.22% node libc-2.23.so [.] 0x000000000015f23f | |
0.51% node [unknown] [k] 0xffffffff8117d87e | |
0.44% node nodejs [.] 0x000000000088dfd6 | |
0.43% node libc-2.23.so [.] 0x000000000015f223 | |
0.39% node nodejs [.] 0x000000000088df2a | |
0.36% node [unknown] [k] 0xffffffff810644d8 | |
0.33% node nodejs [.] 0x000000000088dfbc | |
0.33% node libpthread-2.23.so [.] pthread_mutex_lock | |
0.32% node nodejs [.] 0x000000000088dfdf | |
0.32% node nodejs [.] 0x000000000088df64 | |
0.32% node nodejs [.] 0x000000000088df44 | |
0.32% node nodejs [.] 0x000000000088df98 | |
0.31% node libc-2.23.so [.] 0x000000000015f279 | |
0.31% node nodejs [.] 0x000000000088df6b | |
0.31% node libc-2.23.so [.] 0x000000000015f266 | |
0.31% node nodejs [.] 0x000000000088df89 | |
0.31% node nodejs [.] 0x000000000088dfa4 | |
0.30% node nodejs [.] 0x000000000088df5a | |
0.29% node [unknown] [k] 0xffffffff81840780 | |
0.29% node nodejs [.] 0x000000000088df78 | |
0.28% node nodejs [.] 0x000000000088dfb0 | |
0.27% node libc-2.23.so [.] 0x000000000015f28d | |
0.23% node libdb2.so.1 [.] clientCommCallback | |
0.22% node [unknown] [k] 0xffffffff8117d872 | |
0.21% node nodejs [.] 0x000000000088dfcb | |
0.20% node libdb2.so.1 [.] sqljcReadHdrAr | |
0.20% node nodejs [.] v8::internal::Execution::Call | |
0.19% node nodejs [.] 0x000000000088dfc2 | |
0.18% node libpthread-2.23.so [.] pthread_getspecific | |
0.18% node libdb2.so.1 [.] CLI_sqlCompleteCallback | |
0.17% node libdb2.so.1 [.] CLI_callbDrdaInput | |
0.16% node libdb2.so.1 [.] sqlccipcrecv | |
0.16% node libdb2.so.1 [.] sqljrParseOpnQryRm | |
andrew@sherlock:~/dma/odbc_ibm$ |
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