On Thu, Jan 22, 2015 at 08:06:50PM +0800, zyy9...@126.com wrote: > Hi, > When I modprobe oprofile in domain0, the dmesg show below: > [root@sd02138 ~]# dmesg | tail -n 3 > sha256_ssse3: Using SSSE3 optimized SHA-256 implementation > SELinux: initialized (dev cifs, type cifs), uses genfs_contexts > oprofile: using timer interrupt. > But in domainU it the oprofile using the NMI interrup rightly. > [root@Domain1 ~]# modprobe oprofile > [root@Domain1 ~]# dmesg | tail -n 3 > CIFS VFS: default security mechanism requested. The default security > mechanism will be upgraded from ntlm to ntlmv2 in kernel release 3.3 > SELinux: initialized (dev cifs, type cifs), uses genfs_contexts > oprofile: using NMI interrupt. > > > I have patch the oprofile correctly,the opcontrol show: > [root@sd02138 ~]# opcontrol > …… > --xen=file Xen image (for Xen only) > --active-domains=id[,ids] list of domains in multiple domain profiling > session (Xen) > (detailed profiling of user level and kernel modules code) > (requires running oprofile on these domains) > --passive-domains=id[,ids] list of domains to be profiled (Xen). > or --domains=id[,ids] (coarse profiling of user level and kernel modules > code) > (no need to run oprofile on these domains) > --passive-images=file[,files] list of kernel images associated with each > passive domain > or > --domain-images=file[,files]ll patch the oprofile correctly,the opcontrol > show: > > cpu flags showed the apic flag > [root@sd02138 ~]# cat /proc/cpuinfo | grep flags > flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx > fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni > pclmulqdq monitor est ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor lahf_lm > arat epb dtherm > > Does xenoprof does not supprot X86_64?
It does, but to to use oprofile in Linux you will need patches to enable it. You might be better of just using 'perf'. > > > zyy9...@126.com > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
