135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: rf_acctrace.h,v 1.3 1999/02/05 00:06:06 oster 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.h -- header file for acctrace.c
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*
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*****************************************************************************/
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#ifndef _RF__RF_ACCTRACE_H_
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#define _RF__RF_ACCTRACE_H_
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#include <dev/raidframe/rf_types.h>
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#include <dev/raidframe/rf_hist.h>
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#include <dev/raidframe/rf_etimer.h>
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typedef struct RF_user_acc_stats_s {
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RF_uint64 suspend_ovhd_us; /* us spent mucking in the
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* access-suspension code */
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RF_uint64 map_us; /* us spent mapping the access */
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RF_uint64 lock_us; /* us spent locking & unlocking stripes,
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* including time spent blocked */
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RF_uint64 dag_create_us;/* us spent creating the DAGs */
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RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not
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* broken down into components */
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RF_uint64 exec_us; /* us spent in DispatchDAG */
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RF_uint64 exec_engine_us; /* us spent in engine, not including
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* blocking time */
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RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and
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* generally cleaning up */
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} RF_user_acc_stats_t;
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typedef struct RF_recon_acc_stats_s {
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RF_uint32 recon_start_to_fetch_us;
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RF_uint32 recon_fetch_to_return_us;
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RF_uint32 recon_return_to_submit_us;
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} RF_recon_acc_stats_t;
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typedef struct RF_acctrace_entry_s {
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union {
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RF_user_acc_stats_t user;
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RF_recon_acc_stats_t recon;
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} specific;
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RF_uint8 reconacc; /* whether this is a tracerec for a user acc
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* or a recon acc */
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RF_uint64 xor_us; /* us spent doing XORs */
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RF_uint64 q_us; /* us spent doing XORs */
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RF_uint64 plog_us; /* us spent waiting to stuff parity into log */
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RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl
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* concurrent ops */
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RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting
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* on the disk, incl concurrent ops */
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RF_uint64 total_us; /* total us spent on this access */
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RF_uint64 num_phys_ios; /* number of physical I/Os invoked */
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RF_uint64 phys_io_us; /* time of physical I/O */
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RF_Etimer_t tot_timer; /* a timer used to compute total access time */
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RF_Etimer_t timer; /* a generic timer val for timing events that
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* live across procedure boundaries */
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RF_Etimer_t recon_timer;/* generic timer for recon stuff */
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RF_uint64 index;
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} RF_AccTraceEntry_t;
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typedef struct RF_AccTotals_s {
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/* user acc stats */
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RF_uint64 suspend_ovhd_us;
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RF_uint64 map_us;
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RF_uint64 lock_us;
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RF_uint64 dag_create_us;
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RF_uint64 dag_retry_us;
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RF_uint64 exec_us;
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RF_uint64 exec_engine_us;
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RF_uint64 cleanup_us;
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RF_uint64 user_reccount;
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/* recon acc stats */
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RF_uint64 recon_start_to_fetch_us;
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RF_uint64 recon_fetch_to_return_us;
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RF_uint64 recon_return_to_submit_us;
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RF_uint64 recon_io_overflow_count;
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RF_uint64 recon_phys_io_us;
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RF_uint64 recon_num_phys_ios;
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RF_uint64 recon_diskwait_us;
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RF_uint64 recon_reccount;
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/* trace entry stats */
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RF_uint64 xor_us;
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RF_uint64 q_us;
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RF_uint64 plog_us;
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RF_uint64 diskqueue_us;
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RF_uint64 diskwait_us;
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RF_uint64 total_us;
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RF_uint64 num_log_ents;
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RF_uint64 phys_io_overflow_count;
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RF_uint64 num_phys_ios;
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RF_uint64 phys_io_us;
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RF_uint64 bigvals;
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/* histograms */
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RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS];
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RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS];
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} RF_AccTotals_t;
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#if RF_UTILITY == 0
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RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex)
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#endif /* RF_UTILITY == 0 */
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int rf_ConfigureAccessTrace(RF_ShutdownList_t ** listp);
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void rf_LogTraceRec(RF_Raid_t * raid, RF_AccTraceEntry_t * rec);
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void rf_FlushAccessTraceBuf(void);
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#endif /* !_RF__RF_ACCTRACE_H_ */
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