From 0c0a400d1debb172c596b24ab82efab4975990a9 Mon Sep 17 00:00:00 2001 From: John Levon Date: Thu, 23 Jun 2005 22:02:47 -0700 Subject: [PATCH] oprofile: report anonymous region samples The below patch passes samples from anonymous regions to userspace instead of just dropping them. This provides the support needed for reporting anonymous-region code samples (today: basic accumulated results; later: Java and other dynamically compiled code). As this changes the format, an upgrade to the just-released 0.9 release of the userspace tools is required. This patch is based upon an earlier one by Will Cohen Signed-off-by: John Levon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/Changes | 2 +- Documentation/basic_profiling.txt | 10 +++++++--- 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/Changes b/Documentation/Changes index 57542bc25edd..b37600754762 100644 --- a/Documentation/Changes +++ b/Documentation/Changes @@ -63,7 +63,7 @@ o PPP 2.4.0 # pppd --version o isdn4k-utils 3.1pre1 # isdnctrl 2>&1|grep version o nfs-utils 1.0.5 # showmount --version o procps 3.2.0 # ps --version -o oprofile 0.5.3 # oprofiled --version +o oprofile 0.9 # oprofiled --version Kernel compilation ================== diff --git a/Documentation/basic_profiling.txt b/Documentation/basic_profiling.txt index 65e3dc2d4437..8764e9f70821 100644 --- a/Documentation/basic_profiling.txt +++ b/Documentation/basic_profiling.txt @@ -27,9 +27,13 @@ dump output readprofile -m /boot/System.map > captured_profile Oprofile -------- -Get the source (I use 0.8) from http://oprofile.sourceforge.net/ -and add "idle=poll" to the kernel command line + +Get the source (see Changes for required version) from +http://oprofile.sourceforge.net/ and add "idle=poll" to the kernel command +line. + Configure with CONFIG_PROFILING=y and CONFIG_OPROFILE=y & reboot on new kernel + ./configure --with-kernel-support make install @@ -46,7 +50,7 @@ start opcontrol --start stop opcontrol --stop dump output opreport > output_file -To only report on the kernel, run opreport /boot/vmlinux > output_file +To only report on the kernel, run opreport -l /boot/vmlinux > output_file A reset is needed to clear old statistics, which survive a reboot. -- cgit v1.2.3