I have questions about Xenoprof. This is my softwares. * Gentoo Linux 2.6.18 * Xen 3.2.1 * Xenoprof 0.9.3 I used Xenoprof as following. # opcontrol --init # opcontrol --vmlinux=/boot/vmlinux-2.6.18-xen0 # opcontrol --xen=/boot/xen-syms-3.2.1 # opcontrol --reset # opcontrol --passive-domains=1 --passive-images=/boot/vmlinux-2.6.18-xenU --start /usr/local/bin/opcontrol: line 1276: echo: write error: Invalid argument /usr/local/bin/opcontrol: line 1119: echo: write error: Invalid argument Using 2.6+ Oprofile kernel interface. Reading module info. Using log file /var/lib/oprofile/samples/oprofiled.log Daemon started. Profiler running. $ execute some tasks in DomU # opcontrol --stop # opcontrol --dump And Xenoprof report is as following. $ opreport -l | head -n 20 CPU: CPU with timer interrupt, speed 0 MHz (estimated) Profiling through timer interrupt samples % image name app name symbol name 2104 84.1263 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 hypercall_page 102 4.0784 libpython2.5.so.1.0 libpython2.5.so.1.0 (no symbols) 61 2.4390 libc-2.6.1.so libc-2.6.1.so (no symbols) 9 0.3599 screen screen (no symbols) 8 0.3199 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 __ext3_get_inode_loc 8 0.3199 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 generic_file_buffered_write 8 0.3199 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 journal_add_journal_head 8 0.3199 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 raw_safe_halt 7 0.2799 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 __generic_file_aio_write_nolock 7 0.2799 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 bit_waitqueue 7 0.2799 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 schedule 5 0.1999 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 cpu_idle 5 0.1999 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 ide_outb 5 0.1999 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 journal_stop 5 0.1999 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 profile_hit 5 0.1999 vmlinux-2.6.18-xen0 vmlinux-2.6.18-xen0 xen_idle 4 0.1599 oprofile oprofile (no symbols) It seems that ''hypercall_page'' consumes most of the time. What does ''hypercall_page'' mean? How can I profile events in Xen/Linux? Regards. Kouki Hashimoto hsmtkk@gmail.com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users