db_stat.c
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上传日期:2007-04-14
资源大小:10674k
文件大小:25k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998, 1999, 2000
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char copyright[] =
- "Copyright (c) 1996-2000nSleepycat Software Inc. All rights reserved.n";
- static const char revid[] =
- "$Id: db_stat.c,v 11.42 2001/01/18 18:36:59 bostic Exp $";
- #endif
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #if TIME_WITH_SYS_TIME
- #include <sys/time.h>
- #include <time.h>
- #else
- #if HAVE_SYS_TIME_H
- #include <sys/time.h>
- #else
- #include <time.h>
- #endif
- #endif
- #include <ctype.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #endif
- #include "db_int.h"
- #include "db_page.h"
- #include "db_shash.h"
- #include "lock.h"
- #include "mp.h"
- #define PCT(f, t, pgsize)
- ((t) == 0 ? 0 :
- (((double)(((t) * (pgsize)) - (f)) / ((t) * (pgsize))) * 100))
- typedef enum { T_NOTSET, T_DB, T_ENV, T_LOCK, T_LOG, T_MPOOL, T_TXN } test_t;
- int argcheck __P((char *, const char *));
- int btree_stats __P((DB_ENV *, DB *, DB_BTREE_STAT *));
- int db_init __P((char *, test_t));
- void dl __P((const char *, u_long));
- void dl_bytes __P((const char *, u_long, u_long, u_long));
- int env_stats __P((DB_ENV *));
- int hash_stats __P((DB_ENV *, DB *));
- int lock_ok __P((char *));
- int lock_stats __P((DB_ENV *));
- int log_stats __P((DB_ENV *));
- int main __P((int, char *[]));
- int mpool_ok __P((char *));
- int mpool_stats __P((DB_ENV *));
- void prflags __P((u_int32_t, const FN *));
- int queue_stats __P((DB_ENV *, DB *));
- int txn_compare __P((const void *, const void *));
- int txn_stats __P((DB_ENV *));
- void usage __P((void));
- void version_check __P((void));
- DB_ENV *dbenv;
- char *internal;
- const char
- *progname = "db_stat"; /* Program name. */
- int
- main(argc, argv)
- int argc;
- char *argv[];
- {
- extern char *optarg;
- extern int optind;
- DB_BTREE_STAT *sp;
- DB *alt_dbp, *dbp;
- test_t ttype;
- int ch, checked, d_close, e_close, exitval, nflag, ret;
- char *db, *home, *subdb;
- version_check();
- dbp = NULL;
- ttype = T_NOTSET;
- nflag = 0;
- d_close = e_close = exitval = 0;
- db = home = subdb = NULL;
- while ((ch = getopt(argc, argv, "C:cd:eh:lM:mNs:tV")) != EOF)
- switch (ch) {
- case 'C':
- ttype = T_LOCK;
- if (!argcheck(internal = optarg, "Acflmo"))
- usage();
- break;
- case 'c':
- ttype = T_LOCK;
- break;
- case 'd':
- db = optarg;
- ttype = T_DB;
- break;
- case 'e':
- ttype = T_ENV;
- break;
- case 'h':
- home = optarg;
- break;
- case 'l':
- ttype = T_LOG;
- break;
- case 'M':
- ttype = T_MPOOL;
- if (!argcheck(internal = optarg, "Ahlm"))
- usage();
- break;
- case 'm':
- ttype = T_MPOOL;
- break;
- case 'N':
- nflag = 1;
- if ((ret = db_env_set_panicstate(0)) != 0) {
- fprintf(stderr,
- "%s: db_env_set_panicstate: %sn",
- progname, db_strerror(ret));
- return (1);
- }
- break;
- case 's':
- subdb = optarg;
- ttype = T_DB;
- break;
- case 't':
- ttype = T_TXN;
- break;
- case 'V':
- printf("%sn", db_version(NULL, NULL, NULL));
- exit(0);
- case '?':
- default:
- usage();
- }
- argc -= optind;
- argv += optind;
- switch (ttype) {
- case T_DB:
- if (db == NULL)
- usage();
- break;
- case T_NOTSET:
- usage();
- /* NOTREACHED */
- default:
- break;
- }
- /* Handle possible interruptions. */
- __db_util_siginit();
- /*
- * Create an environment object and initialize it for error
- * reporting.
- */
- if ((ret = db_env_create(&dbenv, 0)) != 0) {
- fprintf(stderr,
- "%s: db_env_create: %sn", progname, db_strerror(ret));
- goto shutdown;
- }
- e_close = 1;
- dbenv->set_errfile(dbenv, stderr);
- dbenv->set_errpfx(dbenv, progname);
- if (nflag && (ret = dbenv->set_mutexlocks(dbenv, 0)) != 0) {
- dbenv->err(dbenv, ret, "set_mutexlocks");
- goto shutdown;
- }
- /* Initialize the environment. */
- if (db_init(home, ttype) != 0)
- goto shutdown;
- switch (ttype) {
- case T_DB:
- /* Create the DB object and open the file. */
- if ((ret = db_create(&dbp, dbenv, 0)) != 0) {
- dbenv->err(dbenv, ret, "db_create");
- goto shutdown;
- }
- if ((ret =
- dbp->open(dbp, db, subdb, DB_UNKNOWN, DB_RDONLY, 0)) != 0) {
- dbp->err(dbp, ret, "open: %s", db);
- goto shutdown;
- }
- /*
- * See if we can open this db read/write to update counts.
- * If its a master-db then we cannot. So check to see,
- * if its btree then it might be.
- */
- checked = 0;
- if (subdb == NULL && dbp->type == DB_BTREE) {
- if ((ret = dbp->stat(dbp, &sp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "dbp->stat");
- return (1);
- }
- checked = 1;
- }
- if (subdb != NULL ||
- dbp->type != DB_BTREE ||
- (sp->bt_metaflags & BTM_SUBDB) == 0) {
- if ((ret = db_create(&alt_dbp, dbenv, 0)) != 0) {
- dbenv->err(dbenv, ret, "db_create");
- goto shutdown;
- }
- if ((ret = dbp->open(alt_dbp,
- db, subdb, DB_UNKNOWN, 0, 0)) == 0) {
- (void)dbp->close(dbp, 0);
- dbp = alt_dbp;
- }
- /* Need to run again to update counts */
- checked = 0;
- }
- d_close = 1;
- switch (dbp->type) {
- case DB_BTREE:
- case DB_RECNO:
- if (btree_stats(dbenv, dbp, checked == 1 ? sp : NULL))
- goto shutdown;
- break;
- case DB_HASH:
- if (hash_stats(dbenv, dbp))
- goto shutdown;
- break;
- case DB_QUEUE:
- if (queue_stats(dbenv, dbp))
- goto shutdown;
- break;
- case DB_UNKNOWN:
- abort(); /* Impossible. */
- /* NOTREACHED */
- }
- break;
- case T_ENV:
- if (env_stats(dbenv))
- exitval = 1;
- break;
- case T_LOCK:
- if (lock_stats(dbenv))
- exitval = 1;
- break;
- case T_LOG:
- if (log_stats(dbenv))
- exitval = 1;
- break;
- case T_MPOOL:
- if (mpool_stats(dbenv))
- exitval = 1;
- break;
- case T_TXN:
- if (txn_stats(dbenv))
- exitval = 1;
- break;
- case T_NOTSET:
- abort(); /* Impossible. */
- /* NOTREACHED */
- }
- if (0) {
- shutdown: exitval = 1;
- }
- if (d_close && (ret = dbp->close(dbp, 0)) != 0) {
- exitval = 1;
- dbp->err(dbp, ret, "close");
- }
- if (e_close && (ret = dbenv->close(dbenv, 0)) != 0) {
- exitval = 1;
- fprintf(stderr,
- "%s: dbenv->close: %sn", progname, db_strerror(ret));
- }
- /* Resend any caught signal. */
- __db_util_sigresend();
- return (exitval);
- }
- /*
- * env_stats --
- * Display environment statistics.
- */
- int
- env_stats(dbenvp)
- DB_ENV *dbenvp;
- {
- REGENV renv;
- REGION *rp, regs[1024];
- int n, ret;
- const char *lable;
- n = sizeof(regs) / sizeof(regs[0]);
- if ((ret = __db_e_stat(dbenvp, &renv, regs, &n)) != 0) {
- dbenvp->err(dbenvp, ret, "__db_e_stat");
- return (1);
- }
- printf("%d.%d.%dtEnvironment version.n",
- renv.majver, renv.minver, renv.patch);
- printf("%lxtMagic number.n", (u_long)renv.magic);
- printf("%dtPanic value.n", renv.panic);
- /* Adjust the reference count for us... */
- printf("%dtReferences.n", renv.refcnt - 1);
- dl("Locks granted without waiting.n",
- (u_long)renv.mutex.mutex_set_nowait);
- dl("Locks granted after waiting.n",
- (u_long)renv.mutex.mutex_set_wait);
- while (n > 0) {
- printf("%sn", DB_LINE);
- rp = ®s[--n];
- switch (rp->type) {
- case REGION_TYPE_ENV:
- lable = "Environment";
- break;
- case REGION_TYPE_LOCK:
- lable = "Lock";
- break;
- case REGION_TYPE_LOG:
- lable = "Log";
- break;
- case REGION_TYPE_MPOOL:
- lable = "Mpool";
- break;
- case REGION_TYPE_MUTEX:
- lable = "Mutex";
- break;
- case REGION_TYPE_TXN:
- lable = "Txn";
- break;
- case INVALID_REGION_TYPE:
- default:
- lable = "Invalid";
- break;
- }
- printf("%s Region: %d.n", lable, rp->id);
- dl_bytes("Size", (u_long)0, (u_long)0, (u_long)rp->size);
- printf("%ldtSegment ID.n", rp->segid);
- dl("Locks granted without waiting.n",
- (u_long)rp->mutex.mutex_set_nowait);
- dl("Locks granted after waiting.n",
- (u_long)rp->mutex.mutex_set_wait);
- }
- return (0);
- }
- /*
- * btree_stats --
- * Display btree/recno statistics.
- */
- int
- btree_stats(dbenvp, dbp, msp)
- DB_ENV *dbenvp;
- DB *dbp;
- DB_BTREE_STAT *msp;
- {
- static const FN fn[] = {
- { BTM_DUP, "duplicates" },
- { BTM_FIXEDLEN, "fixed-length" },
- { BTM_RECNO, "recno" },
- { BTM_RECNUM, "record-numbers" },
- { BTM_RENUMBER, "renumber" },
- { BTM_SUBDB, "multiple-databases" },
- { 0, NULL }
- };
- DB_BTREE_STAT *sp;
- int ret;
- COMPQUIET(dbenvp, NULL);
- if (msp != NULL)
- sp = msp;
- else if ((ret = dbp->stat(dbp, &sp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "dbp->stat");
- return (1);
- }
- printf("%lxtBtree magic number.n", (u_long)sp->bt_magic);
- printf("%lutBtree version number.n", (u_long)sp->bt_version);
- prflags(sp->bt_metaflags, fn);
- if (dbp->type == DB_BTREE) {
- #ifdef NOT_IMPLEMENTED
- dl("Maximum keys per-page.n", (u_long)sp->bt_maxkey);
- #endif
- dl("Minimum keys per-page.n", (u_long)sp->bt_minkey);
- }
- if (dbp->type == DB_RECNO) {
- dl("Fixed-length record size.n", (u_long)sp->bt_re_len);
- if (isprint(sp->bt_re_pad) && !isspace(sp->bt_re_pad))
- printf("%ctFixed-length record pad.n",
- (int)sp->bt_re_pad);
- else
- printf("0x%xtFixed-length record pad.n",
- (int)sp->bt_re_pad);
- }
- dl("Underlying database page size.n", (u_long)sp->bt_pagesize);
- dl("Number of levels in the tree.n", (u_long)sp->bt_levels);
- dl(dbp->type == DB_BTREE ?
- "Number of unique keys in the tree.n" :
- "Number of records in the tree.n", (u_long)sp->bt_nkeys);
- dl("Number of data items in the tree.n", (u_long)sp->bt_ndata);
- dl("Number of tree internal pages.n", (u_long)sp->bt_int_pg);
- dl("Number of bytes free in tree internal pages",
- (u_long)sp->bt_int_pgfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->bt_int_pgfree, sp->bt_int_pg, sp->bt_pagesize));
- dl("Number of tree leaf pages.n", (u_long)sp->bt_leaf_pg);
- dl("Number of bytes free in tree leaf pages",
- (u_long)sp->bt_leaf_pgfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->bt_leaf_pgfree, sp->bt_leaf_pg, sp->bt_pagesize));
- dl("Number of tree duplicate pages.n", (u_long)sp->bt_dup_pg);
- dl("Number of bytes free in tree duplicate pages",
- (u_long)sp->bt_dup_pgfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->bt_dup_pgfree, sp->bt_dup_pg, sp->bt_pagesize));
- dl("Number of tree overflow pages.n", (u_long)sp->bt_over_pg);
- dl("Number of bytes free in tree overflow pages",
- (u_long)sp->bt_over_pgfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->bt_over_pgfree, sp->bt_over_pg, sp->bt_pagesize));
- dl("Number of pages on the free list.n", (u_long)sp->bt_free);
- return (0);
- }
- /*
- * hash_stats --
- * Display hash statistics.
- */
- int
- hash_stats(dbenvp, dbp)
- DB_ENV *dbenvp;
- DB *dbp;
- {
- static const FN fn[] = {
- { DB_HASH_DUP, "duplicates" },
- { DB_HASH_SUBDB,"multiple-databases" },
- { 0, NULL }
- };
- DB_HASH_STAT *sp;
- int ret;
- COMPQUIET(dbenvp, NULL);
- if ((ret = dbp->stat(dbp, &sp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "dbp->stat");
- return (1);
- }
- printf("%lxtHash magic number.n", (u_long)sp->hash_magic);
- printf("%lutHash version number.n", (u_long)sp->hash_version);
- prflags(sp->hash_metaflags, fn);
- dl("Underlying database page size.n", (u_long)sp->hash_pagesize);
- dl("Number of keys in the database.n", (u_long)sp->hash_nkeys);
- dl("Number of data items in the database.n", (u_long)sp->hash_ndata);
- dl("Number of hash buckets.n", (u_long)sp->hash_buckets);
- dl("Number of bytes free on bucket pages", (u_long)sp->hash_bfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->hash_bfree, sp->hash_buckets, sp->hash_pagesize));
- dl("Number of overflow pages.n", (u_long)sp->hash_bigpages);
- dl("Number of bytes free in overflow pages",
- (u_long)sp->hash_big_bfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->hash_big_bfree, sp->hash_bigpages, sp->hash_pagesize));
- dl("Number of bucket overflow pages.n", (u_long)sp->hash_overflows);
- dl("Number of bytes free in bucket overflow pages",
- (u_long)sp->hash_ovfl_free);
- printf(" (%.0f%% ff).n",
- PCT(sp->hash_ovfl_free, sp->hash_overflows, sp->hash_pagesize));
- dl("Number of duplicate pages.n", (u_long)sp->hash_dup);
- dl("Number of bytes free in duplicate pages",
- (u_long)sp->hash_dup_free);
- printf(" (%.0f%% ff).n",
- PCT(sp->hash_dup_free, sp->hash_dup, sp->hash_pagesize));
- dl("Number of pages on the free list.n", (u_long)sp->hash_free);
- return (0);
- }
- /*
- * queue_stats --
- * Display queue statistics.
- */
- int
- queue_stats(dbenvp, dbp)
- DB_ENV *dbenvp;
- DB *dbp;
- {
- DB_QUEUE_STAT *sp;
- int ret;
- COMPQUIET(dbenvp, NULL);
- if ((ret = dbp->stat(dbp, &sp, NULL, 0)) != 0) {
- dbp->err(dbp, ret, "dbp->stat");
- return (1);
- }
- printf("%lxtQueue magic number.n", (u_long)sp->qs_magic);
- printf("%lutQueue version number.n", (u_long)sp->qs_version);
- dl("Fixed-length record size.n", (u_long)sp->qs_re_len);
- if (isprint(sp->qs_re_pad) && !isspace(sp->qs_re_pad))
- printf("%ctFixed-length record pad.n", (int)sp->qs_re_pad);
- else
- printf("0x%xtFixed-length record pad.n", (int)sp->qs_re_pad);
- dl("Underlying database page size.n", (u_long)sp->qs_pagesize);
- dl("Number of records in the database.n", (u_long)sp->qs_nkeys);
- dl("Number of database pages.n", (u_long)sp->qs_pages);
- dl("Number of bytes free in database pages", (u_long)sp->qs_pgfree);
- printf(" (%.0f%% ff).n",
- PCT(sp->qs_pgfree, sp->qs_pages, sp->qs_pagesize));
- printf("%lutFirst undeleted record.n", (u_long)sp->qs_first_recno);
- printf(
- "%lutLast allocated record number.n", (u_long)sp->qs_cur_recno);
- return (0);
- }
- /*
- * lock_stats --
- * Display lock statistics.
- */
- int
- lock_stats(dbenvp)
- DB_ENV *dbenvp;
- {
- DB_LOCK_STAT *sp;
- int ret;
- if (internal != NULL) {
- __lock_dump_region(dbenvp, internal, stdout);
- return (0);
- }
- if ((ret = lock_stat(dbenvp, &sp, NULL)) != 0) {
- dbenvp->err(dbenvp, ret, NULL);
- return (1);
- }
- dl("Last allocated locker ID.n", (u_long)sp->st_lastid);
- dl("Number of lock modes.n", (u_long)sp->st_nmodes);
- dl("Maximum number of locks possible.n", (u_long)sp->st_maxlocks);
- dl("Maximum number of lockers possible.n", (u_long)sp->st_maxlockers);
- dl("Maximum number of objects possible.n", (u_long)sp->st_maxobjects);
- dl("Current locks.n", (u_long)sp->st_nlocks);
- dl("Maximum number of locks so far.n", (u_long)sp->st_maxnlocks);
- dl("Current number of lockers.n", (u_long)sp->st_nlockers);
- dl("Maximum number lockers so far.n", (u_long)sp->st_maxnlockers);
- dl("Current number lock objects.n", (u_long)sp->st_nobjects);
- dl("Maximum number of lock objects so far.n",
- (u_long)sp->st_maxnobjects);
- dl("Number of lock requests.n", (u_long)sp->st_nrequests);
- dl("Number of lock releases.n", (u_long)sp->st_nreleases);
- dl("Number of lock requests that would have waited.n",
- (u_long)sp->st_nnowaits);
- dl("Number of lock conflicts.n", (u_long)sp->st_nconflicts);
- dl("Number of deadlocks.n", (u_long)sp->st_ndeadlocks);
- dl_bytes("Lock region size",
- (u_long)0, (u_long)0, (u_long)sp->st_regsize);
- dl("The number of region locks granted without waiting.n",
- (u_long)sp->st_region_nowait);
- dl("The number of region locks granted after waiting.n",
- (u_long)sp->st_region_wait);
- return (0);
- }
- /*
- * log_stats --
- * Display log statistics.
- */
- int
- log_stats(dbenvp)
- DB_ENV *dbenvp;
- {
- DB_LOG_STAT *sp;
- int ret;
- if ((ret = log_stat(dbenvp, &sp, NULL)) != 0) {
- dbenvp->err(dbenvp, ret, NULL);
- return (1);
- }
- printf("%lxtLog magic number.n", (u_long)sp->st_magic);
- printf("%lutLog version number.n", (u_long)sp->st_version);
- dl_bytes("Log region size",
- (u_long)0, (u_long)0, (u_long)sp->st_regsize);
- dl_bytes("Log record cache size",
- (u_long)0, (u_long)0, (u_long)sp->st_lg_bsize);
- printf("%#otLog file mode.n", sp->st_mode);
- if (sp->st_lg_max % MEGABYTE == 0)
- printf("%luMbtLog file size.n",
- (u_long)sp->st_lg_max / MEGABYTE);
- else if (sp->st_lg_max % 1024 == 0)
- printf("%luKbtLog file size.n", (u_long)sp->st_lg_max / 1024);
- else
- printf("%lutLog file size.n", (u_long)sp->st_lg_max);
- dl_bytes("Log bytes written",
- (u_long)0, (u_long)sp->st_w_mbytes, (u_long)sp->st_w_bytes);
- dl_bytes("Log bytes written since last checkpoint",
- (u_long)0, (u_long)sp->st_wc_mbytes, (u_long)sp->st_wc_bytes);
- dl("Total log file writes.n", (u_long)sp->st_wcount);
- dl("Total log file write due to overflow.n",
- (u_long)sp->st_wcount_fill);
- dl("Total log file flushes.n", (u_long)sp->st_scount);
- printf("%lutCurrent log file number.n", (u_long)sp->st_cur_file);
- printf("%lutCurrent log file offset.n", (u_long)sp->st_cur_offset);
- dl("The number of region locks granted without waiting.n",
- (u_long)sp->st_region_nowait);
- dl("The number of region locks granted after waiting.n",
- (u_long)sp->st_region_wait);
- return (0);
- }
- /*
- * mpool_stats --
- * Display mpool statistics.
- */
- int
- mpool_stats(dbenvp)
- DB_ENV *dbenvp;
- {
- DB_MPOOL_FSTAT **fsp;
- DB_MPOOL_STAT *gsp;
- int ret;
- if (internal != NULL) {
- __memp_dump_region(dbenvp, internal, stdout);
- return (1);
- }
- if ((ret = memp_stat(dbenvp, &gsp, &fsp, NULL)) != 0) {
- dbenvp->err(dbenvp, ret, NULL);
- return (1);
- }
- dl_bytes("Total cache size",
- (u_long)gsp->st_gbytes, (u_long)0, (u_long)gsp->st_bytes);
- dl("Number of caches.n", (u_long)gsp->st_ncache);
- dl("Pool individual cache size.n", (u_long)gsp->st_regsize);
- dl("Requested pages found in the cache", (u_long)gsp->st_cache_hit);
- if (gsp->st_cache_hit + gsp->st_cache_miss != 0)
- printf(" (%.0f%%)", ((double)gsp->st_cache_hit /
- (gsp->st_cache_hit + gsp->st_cache_miss)) * 100);
- printf(".n");
- dl("Requested pages mapped into the process' address space.n",
- (u_long)gsp->st_map);
- dl("Requested pages not found in the cache.n",
- (u_long)gsp->st_cache_miss);
- dl("Pages created in the cache.n", (u_long)gsp->st_page_create);
- dl("Pages read into the cache.n", (u_long)gsp->st_page_in);
- dl("Pages written from the cache to the backing file.n",
- (u_long)gsp->st_page_out);
- dl("Clean pages forced from the cache.n",
- (u_long)gsp->st_ro_evict);
- dl("Dirty pages forced from the cache.n",
- (u_long)gsp->st_rw_evict);
- dl("Dirty buffers written by trickle-sync thread.n",
- (u_long)gsp->st_page_trickle);
- dl("Current clean buffer count.n",
- (u_long)gsp->st_page_clean);
- dl("Current dirty buffer count.n",
- (u_long)gsp->st_page_dirty);
- dl("Number of hash buckets used for page location.n",
- (u_long)gsp->st_hash_buckets);
- dl("Total number of times hash chains searched for a page.n",
- (u_long)gsp->st_hash_searches);
- dl("The longest hash chain searched for a page.n",
- (u_long)gsp->st_hash_longest);
- dl("Total number of hash buckets examined for page location.n",
- (u_long)gsp->st_hash_examined);
- dl("The number of region locks granted without waiting.n",
- (u_long)gsp->st_region_nowait);
- dl("The number of region locks granted after waiting.n",
- (u_long)gsp->st_region_wait);
- for (; fsp != NULL && *fsp != NULL; ++fsp) {
- printf("%sn", DB_LINE);
- printf("Pool File: %sn", (*fsp)->file_name);
- dl("Page size.n", (u_long)(*fsp)->st_pagesize);
- dl("Requested pages found in the cache",
- (u_long)(*fsp)->st_cache_hit);
- if ((*fsp)->st_cache_hit + (*fsp)->st_cache_miss != 0)
- printf(" (%.0f%%)", ((double)(*fsp)->st_cache_hit /
- ((*fsp)->st_cache_hit + (*fsp)->st_cache_miss)) *
- 100);
- printf(".n");
- dl("Requested pages mapped into the process' address space.n",
- (u_long)(*fsp)->st_map);
- dl("Requested pages not found in the cache.n",
- (u_long)(*fsp)->st_cache_miss);
- dl("Pages created in the cache.n",
- (u_long)(*fsp)->st_page_create);
- dl("Pages read into the cache.n",
- (u_long)(*fsp)->st_page_in);
- dl("Pages written from the cache to the backing file.n",
- (u_long)(*fsp)->st_page_out);
- }
- return (0);
- }
- /*
- * txn_stats --
- * Display transaction statistics.
- */
- int
- txn_stats(dbenvp)
- DB_ENV *dbenvp;
- {
- DB_TXN_STAT *sp;
- u_int32_t i;
- int ret;
- const char *p;
- if ((ret = txn_stat(dbenvp, &sp, NULL)) != 0) {
- dbenvp->err(dbenvp, ret, NULL);
- return (1);
- }
- p = sp->st_last_ckp.file == 0 ?
- "No checkpoint LSN." : "File/offset for last checkpoint LSN.";
- printf("%lu/%lut%sn",
- (u_long)sp->st_last_ckp.file, (u_long)sp->st_last_ckp.offset, p);
- p = sp->st_pending_ckp.file == 0 ?
- "No pending checkpoint LSN." :
- "File/offset for last pending checkpoint LSN.";
- printf("%lu/%lut%sn",
- (u_long)sp->st_pending_ckp.file,
- (u_long)sp->st_pending_ckp.offset, p);
- if (sp->st_time_ckp == 0)
- printf("0tNo checkpoint timestamp.n");
- else
- printf("%.24stCheckpoint timestamp.n",
- ctime(&sp->st_time_ckp));
- printf("%lxtLast transaction ID allocated.n",
- (u_long)sp->st_last_txnid);
- dl("Maximum number of active transactions possible.n",
- (u_long)sp->st_maxtxns);
- dl("Active transactions.n", (u_long)sp->st_nactive);
- dl("Maximum active transactions.n", (u_long)sp->st_maxnactive);
- dl("Number of transactions begun.n", (u_long)sp->st_nbegins);
- dl("Number of transactions aborted.n", (u_long)sp->st_naborts);
- dl("Number of transactions committed.n", (u_long)sp->st_ncommits);
- dl_bytes("Transaction region size",
- (u_long)0, (u_long)0, (u_long)sp->st_regsize);
- dl("The number of region locks granted without waiting.n",
- (u_long)sp->st_region_nowait);
- dl("The number of region locks granted after waiting.n",
- (u_long)sp->st_region_wait);
- qsort(sp->st_txnarray,
- sp->st_nactive, sizeof(sp->st_txnarray[0]), txn_compare);
- for (i = 0; i < sp->st_nactive; ++i)
- printf("tid: %lx; initial LSN file/offest %lu/%lun",
- (u_long)sp->st_txnarray[i].txnid,
- (u_long)sp->st_txnarray[i].lsn.file,
- (u_long)sp->st_txnarray[i].lsn.offset);
- return (0);
- }
- int
- txn_compare(a1, b1)
- const void *a1, *b1;
- {
- const DB_TXN_ACTIVE *a, *b;
- a = a1;
- b = b1;
- if (a->txnid > b->txnid)
- return (1);
- if (a->txnid < b->txnid)
- return (-1);
- return (0);
- }
- /*
- * dl --
- * Display a big value.
- */
- void
- dl(msg, value)
- const char *msg;
- u_long value;
- {
- /*
- * Two formats: if less than 10 million, display as the number, if
- * greater than 10 million display as ###M.
- */
- if (value < 10000000)
- printf("%lut%s", value, msg);
- else
- printf("%luMt%s", value / 1000000, msg);
- }
- /*
- * dl_bytes --
- * Display a big number of bytes.
- */
- void
- dl_bytes(msg, gbytes, mbytes, bytes)
- const char *msg;
- u_long gbytes, mbytes, bytes;
- {
- const char *sep;
- u_long sbytes;
- int showbytes;
- sbytes = bytes;
- while (bytes > MEGABYTE) {
- ++mbytes;
- bytes -= MEGABYTE;
- }
- while (mbytes > GIGABYTE / MEGABYTE) {
- ++gbytes;
- --mbytes;
- }
- sep = "";
- showbytes = 0;
- if (gbytes > 0) {
- printf("%luGB", gbytes);
- sep = " ";
- showbytes = 1;
- }
- if (mbytes > 0) {
- printf("%s%luMB", sep, mbytes);
- sep = " ";
- showbytes = 1;
- }
- if (bytes > 1024) {
- printf("%s%luKB", sep, bytes / 1024);
- bytes %= 1024;
- sep = " ";
- showbytes = 1;
- }
- if (bytes > 0)
- printf("%s%luB", sep, bytes);
- printf("t%s", msg);
- if (showbytes)
- printf(" (%lu bytes)", sbytes);
- printf(".n");
- }
- /*
- * prflags --
- * Print out flag values.
- */
- void
- prflags(flags, fnp)
- u_int32_t flags;
- const FN *fnp;
- {
- const char *sep;
- sep = "t";
- printf("Flags:");
- for (; fnp->mask != 0; ++fnp)
- if (fnp->mask & flags) {
- printf("%s%s", sep, fnp->name);
- sep = ", ";
- }
- printf("n");
- }
- /*
- * db_init --
- * Initialize the environment.
- */
- int
- db_init(home, ttype)
- char *home;
- test_t ttype;
- {
- int ret;
- /*
- * If our environment open fails, and we're trying to look at a
- * shared region, it's a hard failure.
- */
- if ((ret = dbenv->open(dbenv,
- home, DB_JOINENV | DB_USE_ENVIRON, 0)) == 0)
- return (0);
- if (ttype != T_DB) {
- dbenv->err(dbenv, ret, "DBENV->open%s%s",
- home == NULL ? "" : ": ", home == NULL ? "" : home);
- return (1);
- }
- /*
- * We're trying to look at a database.
- *
- * An environment is required because we may be trying to look at
- * databases in directories other than the current one. We could
- * avoid using an environment iff the -h option wasn't specified,
- * but that seems like more work than it's worth.
- *
- *
- * No environment exists. Create one, but make it private so that
- * no files are actually created.
- *
- * Note that we will probably just drop core if the environment
- * we joined above does not include a memory pool. This is probably
- * acceptable; trying to use an existing shared environment that
- * does not contain a memory pool to look at a database can
- * be safely construed as operator error, I think.
- */
- if ((ret = dbenv->open(dbenv, home,
- DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_USE_ENVIRON, 0)) == 0)
- return (0);
- /* An environment is required. */
- dbenv->err(dbenv, ret, "open");
- return (1);
- }
- /*
- * argcheck --
- * Return if argument flags are okay.
- */
- int
- argcheck(arg, ok_args)
- char *arg;
- const char *ok_args;
- {
- for (; *arg != ' '; ++arg)
- if (strchr(ok_args, *arg) == NULL)
- return (0);
- return (1);
- }
- void
- usage()
- {
- fprintf(stderr, "usage: db_stat %sn",
- "[-celmNtV] [-C Acflmo] [-d file [-s file]] [-h home] [-M Ahlm]");
- exit (1);
- }
- void
- version_check()
- {
- int v_major, v_minor, v_patch;
- /* Make sure we're loaded with the right version of the DB library. */
- (void)db_version(&v_major, &v_minor, &v_patch);
- if (v_major != DB_VERSION_MAJOR ||
- v_minor != DB_VERSION_MINOR || v_patch != DB_VERSION_PATCH) {
- fprintf(stderr,
- "%s: version %d.%d.%d doesn't match library version %d.%d.%dn",
- progname, DB_VERSION_MAJOR, DB_VERSION_MINOR,
- DB_VERSION_PATCH, v_major, v_minor, v_patch);
- exit (1);
- }
- }