1. 14 Apr, 2010 8 commits
    • Tom Zanussi's avatar
      perf: Convert perf tracing data into a tracing_data event · 9215545e
      Tom Zanussi authored
      Bypasses the tracing_data perf header code and replaces it with
      a synthesized event and processing function that accomplishes
      the same thing, used when reading/writing perf data to/from a
      pipe.
      
      The tracing data is pretty large, and this patch doesn't attempt
      to break it down into component events.  The tracing_data event
      itself doesn't actually contain the tracing data, rather it
      arranges for the event processing code to skip over it after
      it's read, using the skip return value added to the event
      processing loop in a previous patch.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-8-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      9215545e
    • Tom Zanussi's avatar
      perf: Convert perf event types into event type events · cd19a035
      Tom Zanussi authored
      Bypasses the event type perf header code and replaces it with a
      synthesized event and processing function that accomplishes the
      same thing, used when reading/writing perf data to/from a pipe.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-7-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      cd19a035
    • Tom Zanussi's avatar
      perf: Convert perf header attrs into attr events · 2c46dbb5
      Tom Zanussi authored
      Bypasses the attr perf header code and replaces it with a
      synthesized event and processing function that accomplishes the
      same thing, used when reading/writing perf data to/from a pipe.
      
      Making the attrs into events allows them to be streamed over a
      pipe along with the rest of the header data (in later patches).
      It also paves the way to allowing events to be added and removed
      from perf sessions dynamically.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-6-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      2c46dbb5
    • Tom Zanussi's avatar
      perf trace: Introduce special handling for pipe input · c239da3b
      Tom Zanussi authored
      Adds special treatment for stdin - if the user specifies '-i -'
      to perf trace, the intent is that the event stream be read from
      stdin rather than from a disk file.
      
      The actual handling of the '-' filename is done by the session;
      this just adds a signal handler to stop reporting, and turns off
      interference by the pager.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-5-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      c239da3b
    • Tom Zanussi's avatar
      perf report: Introduce special handling for pipe input · 46656ac7
      Tom Zanussi authored
      Adds special treatment for stdin - if the user specifies '-i -'
      to perf report, the intent is that the event stream be written
      to stdin rather than from a disk file.
      
      The actual handling of the '-' filename is done by the session;
      this just adds a signal handler to stop reporting, and turns off
      interference by the pager.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-4-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      46656ac7
    • Tom Zanussi's avatar
      perf record: Introduce special handling for pipe output · 529870e3
      Tom Zanussi authored
      Adds special treatment for stdout - if the user specifies '-o -'
      to perf record, the intent is that the event stream be written
      to stdout rather than to a disk file.
      
      Also, redirect stdout of forked child to stderr - in pipe mode,
      stdout of the forked child interferes with the stdout perf
      stream, so redirect it to stderr where it can still be seen but
      won't be mixed in with the perf output.
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-3-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      529870e3
    • Tom Zanussi's avatar
      perf: Add pipe-specific header read/write and event processing code · 8dc58101
      Tom Zanussi authored
      This patch makes several changes to allow the perf event stream
      to be sent and received over a pipe:
      
      - adds pipe-specific versions of the header read/write code
      
      - adds pipe-specific version of the event processing code
      
      - adds a range of event types to be used for header or other
        pseudo events, above the range used by the kernel
      
      - checks the return value of event handlers, which they can use
        to skip over large events during event processing rather than actually
        reading them into event objects.
      
      - unifies the multiple do_read() functions and updates its
        users.
      
      Note that none of these changes affect the existing perf data
      file format or processing - this code only comes into play if
      perf output is sent to stdout (or is read from stdin).
      Signed-off-by: default avatarTom Zanussi <tzanussi@gmail.com>
      Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-2-git-send-email-tzanussi@gmail.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      8dc58101
    • Ian Munsie's avatar
      perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR() · c0555642
      Ian Munsie authored
      Parsing an option from the command line with OPT_BOOLEAN on a
      bool data type would not work on a big-endian machine due to the
      manner in which the boolean was being cast into an int and
      incremented. For example, running 'perf probe --list' on a
      PowerPC machine would fail to properly set the list_events bool
      and would therefore print out the usage information and
      terminate.
      
      This patch makes OPT_BOOLEAN work as expected with a bool
      datatype. For cases where the original OPT_BOOLEAN was
      intentionally being used to increment an int each time it was
      passed in on the command line, this patch introduces OPT_INCR
      with the old behaviour of OPT_BOOLEAN (the verbose variable is
      currently the only such example of this).
      
      I have reviewed every use of OPT_BOOLEAN to verify that a true
      C99 bool was passed. Where integers were used, I verified that
      they were only being used for boolean logic and changed them to
      bools to ensure that they would not be mistakenly used as ints.
      The major exception was the verbose variable which now uses
      OPT_INCR instead of OPT_BOOLEAN.
      Signed-off-by: default avatarIan Munsie <imunsie@au.ibm.com>
      Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
      Cc: <stable@kernel.org> # NOTE: wont apply to .3[34].x cleanly, please backport
      Cc: Git development list <git@vger.kernel.org>
      Cc: Ian Munsie <imunsie@au1.ibm.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Eric B Munson <ebmunson@us.ibm.com>
      Cc: Valdis.Kletnieks@vt.edu
      Cc: WANG Cong <amwang@redhat.com>
      Cc: Thiago Farina <tfransosi@gmail.com>
      Cc: Masami Hiramatsu <mhiramat@redhat.com>
      Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
      Cc: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Anton Blanchard <anton@samba.org>
      Cc: John Kacur <jkacur@redhat.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      LKML-Reference: <1271147857-11604-1-git-send-email-imunsie@au.ibm.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      c0555642
  2. 09 Apr, 2010 1 commit
  3. 08 Apr, 2010 13 commits
  4. 07 Apr, 2010 18 commits