src/afs/afs_stat.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /* statistics-gathering package */
  11
  12 #include <afsconfig.h>
  13 #include "afs/param.h"
  14
  15
  16 #include "afs/sysincludes.h"    /*Standard vendor system headers */
  17 #include "afsincludes.h"        /*AFS-based standard headers */
  18 #include "afs_stats.h"
  19
  20 struct afs_CMStats afs_cmstats;
  21 struct afs_stats_CMPerf afs_stats_cmperf;
  22 struct afs_stats_CMFullPerf afs_stats_cmfullperf;
  23 afs_int32 afs_stats_XferSumBytes[AFS_STATS_NUM_FS_XFER_OPS];
  24
  25
  26
  27 /*
  28  * afs_InitStats
  29  *
  30  * Description:
  31  *      Initialize all of the CM statistics structures.
  32  *
  33  * Parameters:
  34  *      None.
  35  *
  36  * Environment:
  37  *      This routine should only be called once, at initialization time.
  38  */
  39 void
  40 afs_InitStats(void)
  41 {
  42     struct afs_stats_opTimingData *opTimeP;     /*Ptr to curr timing struct */
  43     struct afs_stats_xferData *xferP;   /*Ptr to curr xfer struct */
  44     int currIdx;                /*Current index */
  45
  46     /*
  47      * First step is to zero everything out.
  48      */
  49     memset((&afs_cmstats), 0, sizeof(struct afs_CMStats));
  50     memset((&afs_stats_cmperf), 0, sizeof(struct afs_stats_CMPerf));
  51     memset((&afs_stats_cmfullperf), 0,
  52            sizeof(struct afs_stats_CMFullPerf));
  53
  54     /*
  55      * Some fields really should be non-zero at the start, so set 'em up.
  56      */
  57     afs_stats_cmperf.srvNumBuckets = NSERVERS;
  58
  59     opTimeP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[0]);
  60     for (currIdx = 0; currIdx < AFS_STATS_NUM_FS_RPC_OPS;
  61          currIdx++, opTimeP++)
  62         opTimeP->minTime.tv_sec = 999999;
  63
  64     opTimeP = &(afs_stats_cmfullperf.rpc.cmRPCTimes[0]);
  65     for (currIdx = 0; currIdx < AFS_STATS_NUM_CM_RPC_OPS;
  66          currIdx++, opTimeP++)
  67         opTimeP->minTime.tv_sec = 999999;
  68
  69     xferP = &(afs_stats_cmfullperf.rpc.fsXferTimes[0]);
  70     for (currIdx = 0; currIdx < AFS_STATS_NUM_FS_XFER_OPS; currIdx++, xferP++) {
  71         xferP->minTime.tv_sec = 999999;
  72         xferP->minBytes = 999999999;
  73     }
  74 }
  75
  76 void
  77 afs_GetCMStat(char **ptr, unsigned *size)
  78 {
  79 #ifndef AFS_NOSTATS
  80     AFS_STATCNT(afs_GetCMStat);
  81     *ptr = (char *)&afs_cmstats;
  82     *size = sizeof(afs_cmstats);
  83 #endif /* AFS_NOSTATS */
  84 }
  85
  86 void
  87 afs_AddToMean(struct afs_MeanStats *oldMean, afs_int32 newValue)
  88 {
  89     AFS_STATCNT(afs_AddToMean);
  90 }