diff options
Diffstat (limited to 'sys/dev/raidframe/rf_acctrace.h')
| -rw-r--r-- | sys/dev/raidframe/rf_acctrace.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_acctrace.h b/sys/dev/raidframe/rf_acctrace.h new file mode 100644 index 0000000..c211514 --- /dev/null +++ b/sys/dev/raidframe/rf_acctrace.h @@ -0,0 +1,134 @@ +/* $FreeBSD$ */ +/* $NetBSD: rf_acctrace.h,v 1.3 1999/02/05 00:06:06 oster Exp $ */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Mark Holland + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +/***************************************************************************** + * + * acctrace.h -- header file for acctrace.c + * + *****************************************************************************/ + + +#ifndef _RF__RF_ACCTRACE_H_ +#define _RF__RF_ACCTRACE_H_ + +#include <dev/raidframe/rf_types.h> +#include <dev/raidframe/rf_hist.h> +#include <dev/raidframe/rf_etimer.h> + +typedef struct RF_user_acc_stats_s { + RF_uint64 suspend_ovhd_us; /* us spent mucking in the + * access-suspension code */ + RF_uint64 map_us; /* us spent mapping the access */ + RF_uint64 lock_us; /* us spent locking & unlocking stripes, + * including time spent blocked */ + RF_uint64 dag_create_us;/* us spent creating the DAGs */ + RF_uint64 dag_retry_us; /* _total_ us spent retrying the op -- not + * broken down into components */ + RF_uint64 exec_us; /* us spent in DispatchDAG */ + RF_uint64 exec_engine_us; /* us spent in engine, not including + * blocking time */ + RF_uint64 cleanup_us; /* us spent tearing down the dag & maps, and + * generally cleaning up */ +} RF_user_acc_stats_t; + +typedef struct RF_recon_acc_stats_s { + RF_uint32 recon_start_to_fetch_us; + RF_uint32 recon_fetch_to_return_us; + RF_uint32 recon_return_to_submit_us; +} RF_recon_acc_stats_t; + +typedef struct RF_acctrace_entry_s { + union { + RF_user_acc_stats_t user; + RF_recon_acc_stats_t recon; + } specific; + RF_uint8 reconacc; /* whether this is a tracerec for a user acc + * or a recon acc */ + RF_uint64 xor_us; /* us spent doing XORs */ + RF_uint64 q_us; /* us spent doing XORs */ + RF_uint64 plog_us; /* us spent waiting to stuff parity into log */ + RF_uint64 diskqueue_us; /* _total_ us spent in disk queue(s), incl + * concurrent ops */ + RF_uint64 diskwait_us; /* _total_ us spent waiting actually waiting + * on the disk, incl concurrent ops */ + RF_uint64 total_us; /* total us spent on this access */ + RF_uint64 num_phys_ios; /* number of physical I/Os invoked */ + RF_uint64 phys_io_us; /* time of physical I/O */ + RF_Etimer_t tot_timer; /* a timer used to compute total access time */ + RF_Etimer_t timer; /* a generic timer val for timing events that + * live across procedure boundaries */ + RF_Etimer_t recon_timer;/* generic timer for recon stuff */ + RF_uint64 index; +} RF_AccTraceEntry_t; + +typedef struct RF_AccTotals_s { + /* user acc stats */ + RF_uint64 suspend_ovhd_us; + RF_uint64 map_us; + RF_uint64 lock_us; + RF_uint64 dag_create_us; + RF_uint64 dag_retry_us; + RF_uint64 exec_us; + RF_uint64 exec_engine_us; + RF_uint64 cleanup_us; + RF_uint64 user_reccount; + /* recon acc stats */ + RF_uint64 recon_start_to_fetch_us; + RF_uint64 recon_fetch_to_return_us; + RF_uint64 recon_return_to_submit_us; + RF_uint64 recon_io_overflow_count; + RF_uint64 recon_phys_io_us; + RF_uint64 recon_num_phys_ios; + RF_uint64 recon_diskwait_us; + RF_uint64 recon_reccount; + /* trace entry stats */ + RF_uint64 xor_us; + RF_uint64 q_us; + RF_uint64 plog_us; + RF_uint64 diskqueue_us; + RF_uint64 diskwait_us; + RF_uint64 total_us; + RF_uint64 num_log_ents; + RF_uint64 phys_io_overflow_count; + RF_uint64 num_phys_ios; + RF_uint64 phys_io_us; + RF_uint64 bigvals; + /* histograms */ + RF_Hist_t dw_hist[RF_HIST_NUM_BUCKETS]; + RF_Hist_t tot_hist[RF_HIST_NUM_BUCKETS]; +} RF_AccTotals_t; +#if RF_UTILITY == 0 +RF_DECLARE_EXTERN_MUTEX(rf_tracing_mutex) +#endif /* RF_UTILITY == 0 */ + + int rf_ConfigureAccessTrace(RF_ShutdownList_t ** listp); + void rf_LogTraceRec(RF_Raid_t * raid, RF_AccTraceEntry_t * rec); + void rf_FlushAccessTraceBuf(void); + +#endif /* !_RF__RF_ACCTRACE_H_ */ |
