1. 19 Jan, 2017 1 commit
    • Philip Carns's avatar
      skip instrumentation attempts on anonymous mmap() · 969b6285
      Philip Carns authored
      Anonymous mmap() calls have no backing file and therefore won't match
      any Darshan characterization records, so we can skip the record lookup
      in this case.  This also fixes a deadlock on Cray systems with hugepages
      enabled, see #210.
      969b6285
  2. 24 Oct, 2016 1 commit
  3. 17 Oct, 2016 1 commit
  4. 10 Oct, 2016 1 commit
  5. 04 Oct, 2016 1 commit
  6. 22 Sep, 2016 1 commit
    • Shane Snyder's avatar
      modify posix open and close counters · 2276d929
      Shane Snyder authored
      POSIX_F_OPEN_TIMESTAMP is now POSIX_F_OPEN_START_TIMESTAMP
      POSIX_F_CLOSE_TIMESTAMP is now POSIX_F_CLOSE_END_TIMESTAMP
      
      I also added POSIX_F_OPEN_END_TIMESTAMP and
      POSIX_F_CLOSE_START_TIMESTAMP, so we can better understand how
      long open and close phases are for some applications.
      2276d929
  7. 09 Aug, 2016 1 commit
  8. 07 Jul, 2016 1 commit
    • Shane Snyder's avatar
      add instrument_fs call to darshan-core · beac22fc
      Shane Snyder authored
      This function can be called by modules to allow FS-specific
      modules to gather data for a given file path/file descriptor.
      Currently integrated into POSIX and STDIO modules.
      beac22fc
  9. 06 Jul, 2016 1 commit
    • Shane Snyder's avatar
      bug fix in gathering of lustre fs data · 2770f997
      Shane Snyder authored
      There are cases where lustre stripe info is not available the
      first time a given file is opened (e.g., when using the
      llapi_file_create call). So, now we call into the lustre module
      every time a file is opened to give the module a chance to gather
      data.
      2770f997
  10. 30 Jun, 2016 1 commit
  11. 14 Jun, 2016 1 commit
  12. 13 Jun, 2016 1 commit
    • Shane Snyder's avatar
      modifications for sorting module records · d599c583
      Shane Snyder authored
      A common record comparision/sort routine is now defined in
      darshan-common which can be used by any modules with fixed-length
      records and whose records first field is the darshan_base_record.
      The comparison was also updated to sort secondarily by darshan
      record identifier to resolve a potential bug in the way we have
      traditionally sorted the records.
      d599c583
  13. 10 Jun, 2016 2 commits
  14. 09 Jun, 2016 1 commit
  15. 08 Jun, 2016 1 commit
  16. 06 Jun, 2016 1 commit
    • Shane Snyder's avatar
      add record_ref interface to darshan-common · 9bfc7b65
      Shane Snyder authored
      This interface provides some convenience functions for mapping
      opaque record identifiers (could be a filename, file descriptor,
      or any other type of file handle) to a corresponding runtime
      structure referencing the actual file record. This runtime
      structure should at least contain a pointer to the actual file
      record, and can also persist arbitrary state for this record.
      9bfc7b65
  17. 31 May, 2016 1 commit
    • Shane Snyder's avatar
      numerous darshan-core api changes · bfde9eb7
      Shane Snyder authored
      - memory management is now entirely handled by darshan-core for
        module records
          * when registering new records, darshan-core returns the
            corresponding buffer to write it to, rather than allowing
            module to determine this
      - modules now decide whether darshan-core should track record
        names by passing either a valid name or NULL to the register
        function
          * this allows modules to register records that aren't really
            tracked by darshan-core
      - only the POSIX module has been ported to new changes for this
        commit
      bfde9eb7
  18. 27 May, 2016 1 commit
  19. 18 May, 2016 1 commit
  20. 01 May, 2016 7 commits
  21. 19 Apr, 2016 1 commit
    • Philip Carns's avatar
      initial skeleton for stdio wrapper lib · ebbe6421
      Philip Carns authored
      - move fopen/fopen64 wrappers to stdio module
      - make infrastructure for tracking stream pointers based on similar fd
        infrastructure in posix
      - define placeholder record structs
      - wrappers don't actually do anything yet
      ebbe6421
  22. 24 Feb, 2016 1 commit
    • Shane Snyder's avatar
      initial runtime lustre module implementation · 657c5b56
      Shane Snyder authored
      the POSIX module will call into the Lustre module for each file
      record created that corresponds to a file from a Lustre FS. No
      counters are currently stored but most of the module strucutre
      has been stubbed.
      657c5b56
  23. 22 Feb, 2016 1 commit
  24. 19 Feb, 2016 1 commit
  25. 05 Feb, 2016 1 commit
  26. 29 Jan, 2016 1 commit
  27. 28 Jan, 2016 1 commit
  28. 27 Jan, 2016 1 commit
  29. 22 Jan, 2016 1 commit
  30. 20 Jan, 2016 1 commit
  31. 19 Jan, 2016 1 commit
  32. 18 Jan, 2016 1 commit
    • Shane Snyder's avatar
      update how module & record registration · d3fae782
      Shane Snyder authored
      - modules now receive a memory buffer after successfully
      registering with darshan-core. modules can request a specific
      memory amount, but may not be honored depending on the configured
      darshan memory limit
      - split the previous register_record function into 2 parts:
          * lookup() -> lookup darshan_record_id corresp. to path name
          * register() -> register record_id & name with darshan-core
      - register_record now returns true if the record added; false
      otherwise (if module was out of memory or darshan is out of memory
      for storing id->name mappings)
      d3fae782
  33. 14 Jan, 2016 1 commit