RE: operf taking 100% cpu
"Maucci, Cyrille" <[email protected]>
| Newsgroups | gmane.linux.oprofile |
|---|---|
| Message-ID | <7D0928B9A8397D4B9E2F9E5FFFB8D86015B100A7@G6W2477.americas.hpqcorp.net> |
Did you try ‘perf top’ on operf ? ☺ From: Xin Tong [mailto:[email protected]] Sent: Friday, January 23, 2015 12:57 AM To: [email protected] Subject: operf taking 100% cpu I am running oprofile on a linux intel haswell machine. and the operf process is taking close to 100% of the time. what is operf doing with that amount of cpu cycles ? maybe its polling on something ? how do i fix this ? operf --separate-thread --event=CPU_CLK_UNHALTED:10000000 ./gcc/bin/viterb00data_2.exe -autogo && opreport -l -g -d --xml -o current.opm top - 15:56:34 up 69 days, 2:59, 13 users, load average: 2.04, 1.71, 1.43 Tasks: 1196 total, 4 running, 1191 sleeping, 1 stopped, 0 zombie Cpu(s): 1.1%us, 0.1%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 60853364k total, 39834668k used, 21018696k free, 818524k buffers Swap: 20479992k total, 1428k used, 20478564k free, 34594044k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 755 root 39 19 0 0 0 R 98.3 0.0 6891:01 kipmi0 118201 xintong1 20 0 14448 1700 1412 R 98.3 0.0 0:03.06 operf 118206 xintong1 20 0 15020 660 524 R 98.3 0.0 0:03.06 viterb00data_2. Thanks, Xin ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ oprofile-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/oprofile-list