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I am rebasing Fedora rawhide oprofile package to oprofile-0.9.7. The xenoprof patches on http://xenoprof.sourceforge.net/#download look a bit dated. The newest version is for oprofile-0.9.5. I massaged the patch oprofile-0.9.5-xen.patch to apply to oprofile-.0.9.7. Attached is that updated patch. Does this look reasonable? Is there a...

Hi , I am getting following error when i try to run xenoprof /usr/local/bin/opcontrol: line 1082: echo: write error: Invalid argument Using 2.6+ OProfile kernel interface. Reading module info. Using log file /var/lib/oprofile/oprofiled.log Daemon started. what is this write error ? Any help is really appreciated. -John _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com...

Hi , I am getting following error when i try to run xenoprof /usr/local/bin/opcontrol: line 1082: echo: write error: Invalid argument Using 2.6+ OProfile kernel interface. Reading module info. Using log file /var/lib/oprofile/oprofiled.log Daemon started. what is this write error ? Any help is really appreciated. -John _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com...

I've been trying to get oprofile results for jitted code without success. I built an 3.5.0 llvm with oprofile enabled, and tested it with lli on a small test case. I built the latest oprofile from the git repository. Debugging I can see that lli is registering the listener and making the oprofile calls to the libopagent api to s...

Mi Maurice, A follow up to Andy's comments: MCJIT can find line numbers for ELF files, at least in limited circumstances. I know because I broke the regression test for it while doing some cleanup recently. ;) Looking at lib/ExecutionEngine/OProfileJIT/OProfileJITEventListener.cpp, I see the line: // TODO: support line number info (similar to IntelJITEventListener.cpp) >From a glance at IntelJITEventListener, I think it would be easy to copy the line number support in there over to OProfileJITEventListener. Cheers, Lang. On Fri, Oct 1...

These patches address issues in the kernel part of xenoprof: * Ill-advised use of on_each_cpu() can lead to sleep with interrupts disabled. * Race conditions in active_domains code. * Cleanup of active_domains code. Comments welcome. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Keir, The following 3 patches allow HVM (SVM and VT) guests to be passively profiled using the very latest patches from Renato. These patches apply to 11470. Renato''s patches: http://xenoprof/sourceforge.net oprofile-0.9.1-xen-r2.patch And also a patch not posted FAIK (oprofile-0.9.1-fix-hvm-addr-overlap.patch) which is in the attached tar.bz2 file. hvm_xenoprofile_1.patch - The first patch is merely the same patch that I posted a few weeks ago. The STGI code is moved from the exits.S files, and into the vmexi...

Nicolas Thierry-Mieg, We followed your instructions to yum install oprofile-gui. We were able to install oprofile-guii.i386 0:0.9.4-15.el5.centos and oprofile.i386 0.0.9.4.15.el.5.centos. I was wondering what our next step should be. I tried ./configure --with-kernel-support with oprofile-0.9.6 and obtain a warning, a working QT not found, no GUI was built. Should w...

...main'' samples besides its owns. There is potential buffer overflow if passive is very busy while primary is idle. The simple workaround is to allocate a rather big buffer for passive. For now it works fine. A better way is to notify primary when passive buffer exceeds the threshold. - When oprofile gets passive domain samples, it splits them in to 3 parts by PC ranges pre-definition: xen/kernel/application and maps the first two into functions. The oprofile version is a little old, for the patch was made last August. The main usage is to use Xenoprof to profile HVM domain as passive domain,...

Hi I am using oprofile 0.9.3 on xen cs 16540 on an Intel system. When I look at the top "hot" functions, I see p2m_change_type being one of the top function in xen-syms. This function is only in the svm (AMD) code and should not appear on an Intel system. I see that this function is not being clled at all w...

...ta and Enhancement Advisory 2014:1918 Upstream details at : https://rhn.redhat.com/errata/RHEA-2014-1918.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 0f0c9183544e6f82486346105c34a54afcd715514e13cc2ce28069102d32b057 oprofile-0.9.9-6.el6_6.i686.rpm 3fc7bf59184123d3d58fec29595f06bde27cc8013fa7788da7346a35c36fc612 oprofile-devel-0.9.9-6.el6_6.i686.rpm e26a9af62cee1cd14bccb46dcc7aff11770f931088f29a442abc51c707e67fdb oprofile-gui-0.9.9-6.el6_6.i686.rpm 6cc09ce4e5f89e9864bb47d0098100f43d9693f33919237e3f7924c1c6440144 opro...

Hello Xenoprof Users, Can someone please verify the steps to get a oprofile session profile multiple sessions? I am using a file VBD for spawning two guest OS domains on the host. I am doing the following: 1.) On dom0 Opcontrol --xen=/boot/xen-syms-blah 2.) On domU domID: 41 Opcontrol --vmlinux=/boot/vmlinux-2..blah 3.) On domU domID: 42 Opcontrol...

...--start-daemon") in dom0, I get this error message: /usr/local/bin/opcontrol: line 1639: echo: write error: Operation not permitted and this message in the Xen console: (XEN) xenoprof: operation 9 failed for dom 0 (status : -1) It looks like opcontrol is trying to do this: echo 1 > /dev/oprofile/enable and it is failing. "operation 9" maps to XENOPROF_start which is consistent with running "opcontrol --start." At first, I ignored the error because it gave the indication "Profiler running" but after I ran "opcontrol --shutdown" followed by "opre...

...--start-daemon") in dom0, I get this error message: /usr/local/bin/opcontrol: line 1639: echo: write error: Operation not permitted and this message in the Xen console: (XEN) xenoprof: operation 9 failed for dom 0 (status : -1) It looks like opcontrol is trying to do this: echo 1 > /dev/oprofile/enable and it is failing. "operation 9" maps to XENOPROF_start which is consistent with running "opcontrol --start." At first, I ignored the error because it gave the indication "Profiler running" but after I ran "opcontrol --shutdown" followed by "opre...

...Errata and Bugfix Advisory 2018:2443 Upstream details at : https://access.redhat.com/errata/RHBA-2018:2443 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 1f2093e41f3f0283bb7c3d198f3d116d21b6930b8675becbd33c65fa694760f6 oprofile-0.9.9-25.el7_5.1.x86_64.rpm 7107c3eb5e80a313ea79b56bd8bd3d86dd956e3891e27b05b0757d8a89255d8e oprofile-devel-0.9.9-25.el7_5.1.i686.rpm 872ba816572cea94acbbc125a592ec4196949ce7170e426a361ddcdbe8f56715 oprofile-devel-0.9.9-25.el7_5.1.x86_64.rpm 4b50910d2515eda7d66edb0ef76aa08ed841cbaedaeb18dbcb3b9c2...

my system configuration xen 3.4.2, oprofile 0.9.5( xenoprof patched ), dom0( jeremy''s pvops kernel 2.6.31.6 - patched dullor''s xenoprof patch ), domU( vanilla kernel 2.6.32 with paravirt enabled ), distribution( ubuntu 9.10 ) In passive mode, xenoprof seems to work well, opreport showed good information. but, in active mod...

The attached patch fixes a Xen panic when a domain is shutdown before oprofile is stopped. Without this patch, free_xenoprof_pages() is called before the domain is destroyed and that, in turn, prevents oprofile from cleaning up pages shared with guests. Shutting down a domain without terminating oprofile therefore causes a Xen panic at a later point in time. The patch was ge...

Hi I am trying to use oprofile with centos 6.0. I know that the debug-info for the kernel is not available, so I believe I used the correct switches to account for this. here is my script... # reset everything opcontrol --shutdown rm /root/.oprofile/da* opcontrol --separate=kernel --no-vmlinux opcontrol...

Thanks for the info. I am using old JIT. So that should not be a problem. I will take a look at using oprofile. I have never used it - so will be somewhat of a learning curve. I notice that the configure script has a --with-oprofile option. In addition to enabling that, is there something else that also needs to be done? My copy of LLVM is compiled with --enable-optimized. Will --with-oprofile work fine wi...

Dear experts, to monitor performance of applications on our private clouds I decided to use Xenoprof. For that, I installed patched OProfile 0.9.5 on Dom0 and DomU. Then, I started the daemon on Dom0 opcontrol --start-daemon --active-domains=1 --separate=library --event=LLC_MISSES:90000 and received the following error: /usr/local/bin/opcontrol: line 1171: echo write error: invalid arguments Using 2.6+ OProfile kernel interface. Us...