117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/* $NetBSD: rf_acctrace.c,v 1.20 2005/02/27 00:27:44 perry Exp $ */
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Mark Holland
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*****************************************************************************
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*
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* acctrace.c -- code to support collecting information about each access
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*
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*****************************************************************************/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rf_acctrace.c,v 1.20 2005/02/27 00:27:44 perry Exp $");
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <dev/raidframe/raidframevar.h>
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#include "rf_threadstuff.h"
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#include "rf_debugMem.h"
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#include "rf_acctrace.h"
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#include "rf_general.h"
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#include "rf_raid.h"
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#include "rf_etimer.h"
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#include "rf_hist.h"
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#include "rf_shutdown.h"
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#if RF_ACC_TRACE > 0
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static long numTracesSoFar;
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RF_DECLARE_MUTEX(rf_tracing_mutex)
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int
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rf_ConfigureAccessTrace(RF_ShutdownList_t **listp)
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{
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numTracesSoFar = 0;
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rf_mutex_init(&rf_tracing_mutex);
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return (0);
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}
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/* install a trace record. cause a flush to disk or to the trace
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* collector daemon if the trace buffer is at least 1/2 full.
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*/
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void
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rf_LogTraceRec(RF_Raid_t *raid, RF_AccTraceEntry_t *rec)
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{
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RF_AccTotals_t *acc = &raid->acc_totals;
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if (((rf_maxNumTraces >= 0) && (numTracesSoFar >= rf_maxNumTraces)))
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return;
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/* update AccTotals for this device */
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if (!raid->keep_acc_totals)
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return;
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acc->num_log_ents++;
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if (rec->reconacc) {
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acc->recon_start_to_fetch_us += rec->specific.recon.recon_start_to_fetch_us;
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acc->recon_fetch_to_return_us += rec->specific.recon.recon_fetch_to_return_us;
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acc->recon_return_to_submit_us += rec->specific.recon.recon_return_to_submit_us;
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acc->recon_num_phys_ios += rec->num_phys_ios;
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acc->recon_phys_io_us += rec->phys_io_us;
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acc->recon_diskwait_us += rec->diskwait_us;
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acc->recon_reccount++;
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} else {
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RF_HIST_ADD(acc->tot_hist, rec->total_us);
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RF_HIST_ADD(acc->dw_hist, rec->diskwait_us);
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/* count of physical ios which are too big. often due to
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* thermal recalibration */
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/* if bigvals > 0, you should probably ignore this data set */
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if (rec->diskwait_us > 100000)
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acc->bigvals++;
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acc->total_us += rec->total_us;
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acc->suspend_ovhd_us += rec->specific.user.suspend_ovhd_us;
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acc->map_us += rec->specific.user.map_us;
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acc->lock_us += rec->specific.user.lock_us;
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acc->dag_create_us += rec->specific.user.dag_create_us;
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acc->dag_retry_us += rec->specific.user.dag_retry_us;
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acc->exec_us += rec->specific.user.exec_us;
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acc->cleanup_us += rec->specific.user.cleanup_us;
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acc->exec_engine_us += rec->specific.user.exec_engine_us;
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acc->xor_us += rec->xor_us;
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acc->q_us += rec->q_us;
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acc->plog_us += rec->plog_us;
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acc->diskqueue_us += rec->diskqueue_us;
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acc->diskwait_us += rec->diskwait_us;
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acc->num_phys_ios += rec->num_phys_ios;
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acc->phys_io_us = rec->phys_io_us;
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acc->user_reccount++;
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}
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}
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#endif /* RF_ACC_TRACE > 0 */
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