darshan-posix-log-format.h 5.64 KB
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/*
 *  (C) 2009 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

#ifndef __DARSHAN_POSIX_LOG_FORMAT_H
#define __DARSHAN_POSIX_LOG_FORMAT_H

#include "darshan-log-format.h"

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/* TODO we need to be able to run more reduction operations to get
 * time and byte variances for shared files. currently, darshan-core
 * just runs a single reduction, which is used to reduce all other
 * shared record fields. (VARIANCE_RANK_TIME, VARIANCE_RANK_BYTES) */
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#define POSIX_COUNTERS \
    /* count of posix opens */\
    X(POSIX_OPENS) \
    /* count of posix reads */\
    X(POSIX_READS) \
    /* count of posix writes */\
    X(POSIX_WRITES) \
    /* count of posix seeks */\
    X(POSIX_SEEKS) \
    /* count of posix stat/lstat/fstats */\
    X(POSIX_STATS) \
    /* count of posix mmaps */\
    X(POSIX_MMAPS) \
    /* count of posix fopens */\
    X(POSIX_FOPENS) \
    /* count of posix freads */\
    X(POSIX_FREADS) \
    /* count of posix fwrites */\
    X(POSIX_FWRITES) \
    /* count of posix fseeks */\
    X(POSIX_FSEEKS) \
    /* count of posix fsyncs */\
    X(POSIX_FSYNCS) \
    /* count of posix fdatasyncs */\
    X(POSIX_FDSYNCS) \
    /* mode of file */\
    X(POSIX_MODE) \
    /* total bytes read */\
    X(POSIX_BYTES_READ) \
    /* total bytes written */\
    X(POSIX_BYTES_WRITTEN) \
    /* highest offset byte read */\
    X(POSIX_MAX_BYTE_READ) \
    /* highest offset byte written */\
    X(POSIX_MAX_BYTE_WRITTEN) \
    /* count of consecutive reads */\
    X(POSIX_CONSEC_READS) \
    /* count of consecutive writes */\
    X(POSIX_CONSEC_WRITES) \
    /* count of sequential reads */\
    X(POSIX_SEQ_READS) \
    /* count of sequential writes */\
    X(POSIX_SEQ_WRITES) \
    /* number of times switched between read and write */\
    X(POSIX_RW_SWITCHES) \
    /* count of accesses not mem aligned */\
    X(POSIX_MEM_NOT_ALIGNED) \
    /* mem alignment in bytes */\
    X(POSIX_MEM_ALIGNMENT) \
    /* count of accesses not file aligned */\
    X(POSIX_FILE_NOT_ALIGNED) \
    /* file alignment in bytes */\
    X(POSIX_FILE_ALIGNMENT) \
    X(POSIX_MAX_READ_TIME_SIZE) \
    X(POSIX_MAX_WRITE_TIME_SIZE) \
    /* buckets for POSIX read size ranges */\
    X(POSIX_SIZE_READ_0_100) \
    X(POSIX_SIZE_READ_100_1K) \
    X(POSIX_SIZE_READ_1K_10K) \
    X(POSIX_SIZE_READ_10K_100K) \
    X(POSIX_SIZE_READ_100K_1M) \
    X(POSIX_SIZE_READ_1M_4M) \
    X(POSIX_SIZE_READ_4M_10M) \
    X(POSIX_SIZE_READ_10M_100M) \
    X(POSIX_SIZE_READ_100M_1G) \
    X(POSIX_SIZE_READ_1G_PLUS) \
    /* buckets for POSIX write size ranges */\
    X(POSIX_SIZE_WRITE_0_100) \
    X(POSIX_SIZE_WRITE_100_1K) \
    X(POSIX_SIZE_WRITE_1K_10K) \
    X(POSIX_SIZE_WRITE_10K_100K) \
    X(POSIX_SIZE_WRITE_100K_1M) \
    X(POSIX_SIZE_WRITE_1M_4M) \
    X(POSIX_SIZE_WRITE_4M_10M) \
    X(POSIX_SIZE_WRITE_10M_100M) \
    X(POSIX_SIZE_WRITE_100M_1G) \
    X(POSIX_SIZE_WRITE_1G_PLUS) \
    /* the four most frequently appearing strides */\
    X(POSIX_STRIDE1_STRIDE) \
    X(POSIX_STRIDE2_STRIDE) \
    X(POSIX_STRIDE3_STRIDE) \
    X(POSIX_STRIDE4_STRIDE) \
    /* count of each of the most frequent strides */\
    X(POSIX_STRIDE1_COUNT) \
    X(POSIX_STRIDE2_COUNT) \
    X(POSIX_STRIDE3_COUNT) \
    X(POSIX_STRIDE4_COUNT) \
    /* the four most frequently appearing access sizes */\
    X(POSIX_ACCESS1_ACCESS) \
    X(POSIX_ACCESS2_ACCESS) \
    X(POSIX_ACCESS3_ACCESS) \
    X(POSIX_ACCESS4_ACCESS) \
    /* count of each of the most frequent access sizes */\
    X(POSIX_ACCESS1_COUNT) \
    X(POSIX_ACCESS2_COUNT) \
    X(POSIX_ACCESS3_COUNT) \
    X(POSIX_ACCESS4_COUNT) \
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    /* rank and number of bytes moved for fastest/slowest ranks */\
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    X(POSIX_FASTEST_RANK) \
    X(POSIX_FASTEST_RANK_BYTES) \
    X(POSIX_SLOWEST_RANK) \
    X(POSIX_SLOWEST_RANK_BYTES) \
    /* end of counters */\
    X(POSIX_NUM_INDICES)

#define POSIX_F_COUNTERS \
    /* timestamp of first open */\
    X(POSIX_F_OPEN_TIMESTAMP) \
    /* timestamp of first read */\
    X(POSIX_F_READ_START_TIMESTAMP) \
    /* timestamp of first write */\
    X(POSIX_F_WRITE_START_TIMESTAMP) \
    /* timestamp of last read */\
    X(POSIX_F_READ_END_TIMESTAMP) \
    /* timestamp of last write */\
    X(POSIX_F_WRITE_END_TIMESTAMP) \
    /* timestamp of last close */\
    X(POSIX_F_CLOSE_TIMESTAMP) \
    /* cumulative posix read time */\
    X(POSIX_F_READ_TIME) \
    /* cumulative posix write time */\
    X(POSIX_F_WRITE_TIME) \
    /* cumulative posix meta time */\
    X(POSIX_F_META_TIME) \
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    /* maximum posix read duration */\
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    X(POSIX_F_MAX_READ_TIME) \
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    /* maximum posix write duration */\
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    X(POSIX_F_MAX_WRITE_TIME) \
    /* total i/o and meta time consumed for fastest/slowest ranks */\
    X(POSIX_F_FASTEST_RANK_TIME) \
    X(POSIX_F_SLOWEST_RANK_TIME) \
    /* end of counters */\
    X(POSIX_F_NUM_INDICES)

#define X(a) a,
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/* integer statistics for POSIX file records */
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enum darshan_posix_indices
{
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    POSIX_COUNTERS
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};

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/* floating point statistics for POSIX file records */
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enum darshan_posix_f_indices
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{
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    POSIX_F_COUNTERS
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};
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#undef X
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/* file record structure for POSIX files. a record is created and stored for
 * every POSIX file opened by the original application. For the POSIX module,
 * the record includes:
 *      - a corresponding record identifier (created by hashing the file path)
 *      - the rank of the process which opened the file (-1 for shared files)
 *      - integer file I/O statistics (open, read/write counts, etc)
 *      - floating point I/O statistics (timestamps, cumulative timers, etc.)
 */
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struct darshan_posix_file
{
    darshan_record_id f_id;
    int64_t rank;
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    int64_t counters[POSIX_NUM_INDICES];
    double fcounters[POSIX_F_NUM_INDICES];
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};

#endif /* __DARSHAN_POSIX_LOG_FORMAT_H */