[yocto] [V2][PATCH 0/4]lttng-2.0 new recipe
Darren Hart
dvhart at linux.intel.com
Mon Jan 9 10:02:48 PST 2012
On 01/09/2012 01:24 AM, Zumeng Chen wrote:
> This patchset adds support for lttng-2.0, including the folloing
> four bb files:
> babeltrace_0.8.bb
> lttng-modules_v2.0.pre11.bb
> lttng-tools_2.0-pre16.bb
> lttng-ust_1.9.4.bb
> And two patches for smoothly compiling:
> lttng-modules-replace-KERNELDIR-with-KERNEL_SRC.patch
> lttng-tools-fix-compiling-error-for-powerpc-arm.patch
>
> V2 Changes vs V0:
> 1) fixed all comments from Darren;
> 2) A build test passed;
Have you done any runtime testing using this series?
> 3) Highlight for the relationship between lttng-2.0 vs lttng
> It seems no objection from all.
>
> There is a clear description of the LTTng 2.0 architecture in the
> followiing site:
> http://lttng.org/sites/lttng.org/files/LTTng2_0Architecture_pa3.pdf
>
> Currently lttng-2.0 is still in pre-release phrase, so I add this
> into the patch header for reminder. And another goal of this RR
> is intended to bring forward the following issues:
>
> lttng-2.0 has been added into recipies-kernel, which coexisted
> with lttng(the previous version), because there are some mainly
> changes from lttng-control to lttng-tools, which both monitors
> tracepoints and dynamic probes from kernel and userspace. But
> I'm not sure if we should remove the previous version lttng.
> My suggestion is to preserve for 2.6.37 kernel :-)
>
Agreed, we need to keep lttng around for the time being.
> lttng-2.0 supports lttng-modules extra builds, which don't need
> any patches on Linux kernel vs the previous version of lttng.
> As described in README of lttng-modules-2.0, so far, it has been
> tested in current 3.0 kernel on x86 32/64-bit, and powerpc 32-bit,
> , build tested on ARM. So the related tests on qemux86 and qemuppc
> has been validated and a build test on qemuarm passed too with
> this patcheset.
>
> Babeltrace provides as a trace converter, which used to convert
> LTTng 2.0 traces into human-readable log(see below example for
> qemuppc)
This sort of information would be useful in the patch commit messages.
This all gets lost once the patches are committed.
--
Darren
>
> lttng-ust_1.9.4 is Linux Trace Toolkit 2.0 Userspace Tracer.
>
> I'm still keep an eye on the development of lttng for updates.
>
> Regard,
> Zumeng
>
> root at qemuppc:/# lttng list -k
> Kernel events:
> -------------
> sched_kthread_stop (type: tracepoint)
> sched_kthread_stop_ret (type: tracepoint)
> sched_wakeup (type: tracepoint)
> sched_wakeup_new (type: tracepoint)
> sched_switch (type: tracepoint)
> sched_migrate_task (type: tracepoint)
> sched_process_free (type: tracepoint)
> sched_process_exit (type: tracepoint)
> sched_wait_task (type: tracepoint)
> sched_process_wait (type: tracepoint)
> sched_process_fork (type: tracepoint)
> sched_stat_wait (type: tracepoint)
> sched_stat_sleep (type: tracepoint)
> sched_stat_iowait (type: tracepoint)
> sched_stat_runtime (type: tracepoint)
> sched_pi_setprio (type: tracepoint)
> irq_handler_entry (type: tracepoint)
> irq_handler_exit (type: tracepoint)
> softirq_entry (type: tracepoint)
> softirq_exit (type: tracepoint)
> softirq_raise (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
> (type: tracepoint) [disabled]
>
> root at qemuppc:/# lttng create mysession
> Session mysession created.
> Traces will be written in /home/root/lttng-traces/mysession-20111230-152610
> root at qemuppc:/# lttng enable-event -a -k
> All kernel events are enabled in channel channel0
> root at qemuppc:/# lttng enable-event sched_switch,sched_wakeup -k
> kernel event sched_switch created in channel channel0
> kernel event sched_wakeup created in channel channel0
> root at qemuppc:/# lttng enable-event -a -k --tracepoint
> All kernel tracepoints are enabled in channel channel0
> root at qemuppc:/# lttng add-context -k -e sched_switch -t pid
> kernel context pid added to sched_switch event in all channels
> root at qemuppc:/# lttng start
> Tracing started for session mysession
> root at qemuppc:/# lttng list -u
> UST events:
> -------------
> None
>
> root at qemuppc:/# lttng stop
> Tracing stopped for session mysession
> root at qemuppc:/# lttng list -u
> UST events:
> -------------
> None
>
> root at qemuppc:/# uname -a
> Linux qemuppc 3.0.12-yocto-standard+ #1 PREEMPT Thu Dec 29 22:23:52 CST 2011 ppc GNU/Linux
> root at qemuppc:/#
> root at qemuppc:/# babeltrace /home/root/lttng-traces/mysession-20111230-152610 | less
> [2078772597067] softirq_raise: { 0 }, { vec = 1 }
> [2078773657367] softirq_raise: { 0 }, { vec = 9 }
> [2078773943557] sched_stat_runtime: { 0 }, { comm = "lttng-sessiond", tid = 404, runtime = 5104592, vruntime = 61173667721 }
> [2078774051587] softirq_entry: { 0 }, { vec = 1 }
> [2078774081797] softirq_exit: { 0 }, { vec = 1 }
> [2078774086557] softirq_entry: { 0 }, { vec = 9 }
> [2078774094247] softirq_exit: { 0 }, { vec = 9 }
> [2078774105437] sched_stat_runtime: { 0 }, { comm = "lttng-sessiond", tid = 404, runtime = 230192, vruntime = 61173897913 }
> [2078774185387] sched_stat_wait: { 0 }, { comm = "lttng-consumerd", tid = 418, delay = 5334784 }
> [2078774328677] sched_switch: { 0 }, 385, { prev_comm = "lttng-sessiond", prev_tid = 404, prev_prio = 20, prev_state = 0, next_comm = "lttng-consumerd", next_tid = 418, next_prio = 20 }
> [2078774802747] exit_syscall: { 0 }, { ret = 1 }
> [2078774968937] sys_unknown: { 0 }, { id = 102, args = [ [0] = 17, [1] = 1218120660, [2] = 0, [3] = 268526120, [4] = 32, [5] = 4294967232 ] }
> [2078775075597] exit_syscall: { 0 }, { ret = 4136 }
> [2078775109747] sys_unknown: { 0 }, { id = 167, args = [ [0] = 1218124968, [1] = 2, [2] = 4294967295, [3] = 268526120, [4] = 32, [5] = 4294967232 ] }
> [2078775130867] exit_syscall: { 0 }, { ret = 1 }
> [2078775339007] sys_unknown: { 0 }, { id = 102, args = [ [0] = 17, [1] = 1218120612, [2] = 0, [3] = 268526120, [4] = 32, [5] = 4294967232 ] }
> [2078776095757] exit_syscall: { 0 }, { ret = 1 }
> [2078776238357] softirq_raise: { 0 }, { vec = 1 }
> [2078776245827] softirq_raise: { 0 }, { vec = 9 }
> [2078776265487] sched_stat_runtime: { 0 }, { comm = "lttng-consumerd", tid = 418, runtime = 2149408, vruntime = 61169846169 }
> [2078776291187] softirq_entry: { 0 }, { vec = 1 }
> [2078776306217] softirq_exit: { 0 }, { vec = 1 }
> [2078776310607] softirq_entry: { 0 }, { vec = 9 }
> [2078776317337] softirq_exit: { 0 }, { vec = 9 }
> ....snip..........................
>
> The following changes since commit 5797feac5f06f5cc363869cd440b82b3eaafd456:
>
> image-mklibs/package_ipk: Remove bashisms (2012-01-05 22:26:25 +0000)
>
> are available in the git repository at:
> git://git.pokylinux.org/poky-contrib zumeng/lttng-2.0
> http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=zumeng/lttng-2.0
>
> Zumeng Chen (4):
> lttng-ust: Integrate into yocto linux
> lttng-tools: Integrated from git repo.
> lttng-modules: from lttng-modules 2.0 git repo.
> babeltrace: Integrated from version 0.8
>
> meta/recipes-kernel/lttng-2.0/babeltrace_0.8.bb | 30 ++++++++++++++
> ...modules-replace-KERNELDIR-with-KERNEL_SRC.patch | 41 ++++++++++++++++++++
> .../lttng-2.0/lttng-modules_v2.0.pre11.bb | 23 +++++++++++
> ...-compiling-error-for-powerpc-arm-and-mips.patch | 23 +++++++++++
> .../lttng-2.0/lttng-tools_2.0-pre16.bb | 24 +++++++++++
> meta/recipes-kernel/lttng-2.0/lttng-ust_1.9.4.bb | 23 +++++++++++
> 6 files changed, 164 insertions(+), 0 deletions(-)
> create mode 100644 meta/recipes-kernel/lttng-2.0/babeltrace_0.8.bb
> create mode 100644 meta/recipes-kernel/lttng-2.0/lttng-modules-replace-KERNELDIR-with-KERNEL_SRC.patch
> create mode 100644 meta/recipes-kernel/lttng-2.0/lttng-modules_v2.0.pre11.bb
> create mode 100644 meta/recipes-kernel/lttng-2.0/lttng-tools-fix-compiling-error-for-powerpc-arm-and-mips.patch
> create mode 100644 meta/recipes-kernel/lttng-2.0/lttng-tools_2.0-pre16.bb
> create mode 100644 meta/recipes-kernel/lttng-2.0/lttng-ust_1.9.4.bb
>
>
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
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