6 Commits

Author SHA1 Message Date
rwatson
12391a1891 Merge pmcstat.8:1.6 from HEAD to RELENG_6:
Fix spelling error in sample command.

Approved by:	re (hrs)
2005-07-17 19:32:27 +00:00
jkoshy
e90ce451ce Add examples illustrating how to record system-wide profiles and
how to convert these to gprof(1) flat profiles.  Augment description
for the '-g' option.

Remove superfluous quotes around a macro argument, bump document date [1].

Reminded by:	ru [1]
Approved by:	re (blanket hwpmc)
2005-07-01 03:50:30 +00:00
jkoshy
3cade8d074 MFP4:
- pmcstat(8) gprof output mode fixes:

  lib/libpmc/pmclog.{c,h}, sys/sys/pmclog.h:
  + Add a 'is_usermode' field to the PMCLOG_PCSAMPLE event
  + Add an 'entryaddr' field to the PMCLOG_PROCEXEC event,
    so that pmcstat(8) can determine where the runtime loader
    /libexec/ld-elf.so.1 is getting loaded.

  sys/kern/kern_exec.c:
  + Use a local struct to group the entry address of the image being
    exec()'ed and the process credential changed flag to the exec
    handling hook inside hwpmc(4).

  usr.sbin/pmcstat/*:
  + Support "-k kernelpath", "-D sampledir".
  + Implement the ELF bits of 'gmon.out' profile generation in a new
    file "pmcstat_log.c".  Move all log related functions to this
    file.
  + Move local definitions and prototypes to "pmcstat.h"

- Other bug fixes:
  + lib/libpmc/pmclog.c: correctly handle EOF in pmclog_read().
  + sys/dev/hwpmc_mod.c: unconditionally log a PROCEXIT event to all
    attached PMCs when a process exits.
  + sys/sys/pmc.h: correct a function prototype.
  + Improve usage checks in pmcstat(8).

Approved by:	re (blanket hwpmc)
2005-06-30 19:01:26 +00:00
jkoshy
dacb5026fc - Tidy markup. [1]
- Remove mention of an unimplemented option.
- Clarify the behavior of pmcstat when logging PMCs are
  requested, but no log output file is specified.
- Add a cross-reference to pmclog(3).
- Bump document date.

Reviewed by:	ru
Submitted by:	ru [1]
Approved by:	re (blanket hwpmc)
2005-06-24 17:24:55 +00:00
jkoshy
1d3209ab83 MFP4:
- Implement sampling modes and logging support in hwpmc(4).

- Separate MI and MD parts of hwpmc(4) and allow sharing of
  PMC implementations across different architectures.
  Add support for P4 (EMT64) style PMCs to the amd64 code.

- New pmcstat(8) options: -E (exit time counts) -W (counts
  every context switch), -R (print log file).

- pmc(3) API changes, improve our ability to keep ABI compatibility
  in the future.  Add more 'alias' names for commonly used events.

- bug fixes & documentation.
2005-06-09 19:45:09 +00:00
jkoshy
dc3444cd91 Bring a working snapshot of hwpmc(4), its associated libraries, userland utilities
and documentation into -CURRENT.

Bump FreeBSD_version.

Reviewed by:	alc, jhb (kernel changes)
2005-04-19 04:01:25 +00:00