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-rw-r--r--db2/mp/mp_pr.c313
1 files changed, 313 insertions, 0 deletions
diff --git a/db2/mp/mp_pr.c b/db2/mp/mp_pr.c
new file mode 100644
index 0000000000..94eabf5947
--- /dev/null
+++ b/db2/mp/mp_pr.c
@@ -0,0 +1,313 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ * Sleepycat Software. All rights reserved.
+ */
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)mp_pr.c 10.12 (Sleepycat) 7/29/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "shqueue.h"
+#include "db_shash.h"
+#include "mp.h"
+
+void __memp_debug __P((DB_MPOOL *, FILE *, int));
+
+static void __memp_pbh __P((FILE *, DB_MPOOL *, BH *, int));
+static void __memp_pdbmf __P((FILE *, DB_MPOOLFILE *, int));
+static void __memp_pmf __P((FILE *, MPOOLFILE *, int));
+static void __memp_pmp __P((FILE *, DB_MPOOL *, MPOOL *, int));
+
+/*
+ * memp_stat --
+ * Display MPOOL statistics.
+ */
+int
+memp_stat(dbmp, gspp, fspp, db_malloc)
+ DB_MPOOL *dbmp;
+ DB_MPOOL_STAT **gspp;
+ DB_MPOOL_FSTAT ***fspp;
+ void *(*db_malloc) __P((size_t));
+{
+ DB_MPOOL_FSTAT **tfsp;
+ MPOOLFILE *mfp;
+ size_t len, nlen;
+ char *name;
+
+ /* Allocate space for the global statistics. */
+ if (gspp != NULL) {
+ *gspp = NULL;
+
+ if ((*gspp = db_malloc == NULL ?
+ (DB_MPOOL_STAT *)malloc(sizeof(**gspp)) :
+ (DB_MPOOL_STAT *)db_malloc(sizeof(**gspp))) == NULL)
+ return (ENOMEM);
+
+ LOCKREGION(dbmp);
+
+ /* Copy out the global statistics. */
+ **gspp = dbmp->mp->stat;
+ (*gspp)->st_hash_buckets = dbmp->mp->htab_buckets;
+
+ UNLOCKREGION(dbmp);
+ }
+
+ if (fspp != NULL) {
+ *fspp = NULL;
+
+ LOCKREGION(dbmp);
+
+ /* Count the MPOOLFILE structures. */
+ for (len = 0,
+ mfp = SH_TAILQ_FIRST(&dbmp->mp->mpfq, __mpoolfile);
+ mfp != NULL;
+ ++len, mfp = SH_TAILQ_NEXT(mfp, q, __mpoolfile));
+
+ UNLOCKREGION(dbmp);
+
+ if (len == 0)
+ return (0);
+
+ /* Allocate space for the pointers. */
+ len = (len + 1) * sizeof(DB_MPOOL_FSTAT *);
+ if ((*fspp = db_malloc == NULL ?
+ (DB_MPOOL_FSTAT **)malloc(len) :
+ (DB_MPOOL_FSTAT **)db_malloc(len)) == NULL)
+ return (ENOMEM);
+
+ LOCKREGION(dbmp);
+
+ /* Build each individual entry. */
+ for (tfsp = *fspp,
+ mfp = SH_TAILQ_FIRST(&dbmp->mp->mpfq, __mpoolfile);
+ mfp != NULL;
+ ++tfsp, mfp = SH_TAILQ_NEXT(mfp, q, __mpoolfile)) {
+ name = ADDR(dbmp, mfp->path_off);
+ nlen = strlen(name);
+ len = sizeof(DB_MPOOL_FSTAT) + nlen + 1;
+ if ((*tfsp = db_malloc == NULL ?
+ (DB_MPOOL_FSTAT *)malloc(len) :
+ (DB_MPOOL_FSTAT *)db_malloc(len)) == NULL)
+ return (ENOMEM);
+ **tfsp = mfp->stat;
+ (*tfsp)->file_name = (char *)
+ (u_int8_t *)*tfsp + sizeof(DB_MPOOL_FSTAT);
+ memcpy((*tfsp)->file_name, name, nlen + 1);
+ }
+ *tfsp = NULL;
+
+ UNLOCKREGION(dbmp);
+ }
+ return (0);
+}
+
+/*
+ * __memp_debug --
+ * Display MPOOL structures.
+ *
+ * PUBLIC: void __memp_debug __P((DB_MPOOL *, FILE *, int));
+ */
+void
+__memp_debug(dbmp, fp, data)
+ DB_MPOOL *dbmp;
+ FILE *fp;
+ int data;
+{
+ DB_MPOOLFILE *dbmfp;
+ u_long cnt;
+
+ /* Make it easy to call from the debugger. */
+ if (fp == NULL)
+ fp = stderr;
+
+ /* Welcome message. */
+ (void)fprintf(fp, "%s\nMpool per-process (%lu) statistics\n",
+ DB_LINE, (u_long)getpid());
+
+ if (data)
+ (void)fprintf(fp, " fd: %d; addr %lx; maddr %lx\n",
+ dbmp->fd, (u_long)dbmp->addr, (u_long)dbmp->maddr);
+
+ /* Display the DB_MPOOLFILE structures. */
+ for (cnt = 0, dbmfp = TAILQ_FIRST(&dbmp->dbmfq);
+ dbmfp != NULL; ++cnt, dbmfp = TAILQ_NEXT(dbmfp, q));
+ (void)fprintf(fp, "%lu process-local files\n", cnt);
+ for (dbmfp = TAILQ_FIRST(&dbmp->dbmfq);
+ dbmfp != NULL; dbmfp = TAILQ_NEXT(dbmfp, q)) {
+ (void)fprintf(fp, "%s\n", dbmfp->path);
+ __memp_pdbmf(fp, dbmfp, data);
+ }
+
+ /* Switch to global statistics. */
+ (void)fprintf(fp, "\n%s\nMpool statistics\n", DB_LINE);
+
+ /* Display the MPOOL structure. */
+ __memp_pmp(fp, dbmp, dbmp->mp, data);
+
+ /* Flush in case we're debugging. */
+ (void)fflush(fp);
+}
+
+/*
+ * __memp_pdbmf --
+ * Display a DB_MPOOLFILE structure.
+ */
+static void
+__memp_pdbmf(fp, dbmfp, data)
+ FILE *fp;
+ DB_MPOOLFILE *dbmfp;
+ int data;
+{
+ if (!data)
+ return;
+
+ (void)fprintf(fp, " fd: %d; %s\n",
+ dbmfp->fd, F_ISSET(dbmfp, MP_READONLY) ? "readonly" : "read/write");
+}
+
+/*
+ * __memp_pmp --
+ * Display the MPOOL structure.
+ */
+static void
+__memp_pmp(fp, dbmp, mp, data)
+ FILE *fp;
+ DB_MPOOL *dbmp;
+ MPOOL *mp;
+ int data;
+{
+ BH *bhp;
+ MPOOLFILE *mfp;
+ DB_HASHTAB *htabp;
+ size_t bucket;
+ int cnt;
+ const char *sep;
+
+ (void)fprintf(fp, "references: %lu; cachesize: %lu\n",
+ (u_long)mp->rlayout.refcnt, (u_long)mp->stat.st_cachesize);
+ (void)fprintf(fp,
+ " %lu pages created\n", mp->stat.st_page_create);
+ (void)fprintf(fp,
+ " %lu mmap pages returned\n", mp->stat.st_map);
+ (void)fprintf(fp, " %lu I/O's (%lu read, %lu written)\n",
+ mp->stat.st_page_in + mp->stat.st_page_out,
+ mp->stat.st_page_in, mp->stat.st_page_out);
+ if (mp->stat.st_cache_hit + mp->stat.st_cache_miss != 0)
+ (void)fprintf(fp,
+ " %.0f%% cache hit rate (%lu hit, %lu miss)\n",
+ ((double)mp->stat.st_cache_hit /
+ (mp->stat.st_cache_hit + mp->stat.st_cache_miss)) * 100,
+ mp->stat.st_cache_hit, mp->stat.st_cache_miss);
+
+ /* Display the MPOOLFILE structures. */
+ for (cnt = 0, mfp = SH_TAILQ_FIRST(&dbmp->mp->mpfq, __mpoolfile);
+ mfp != NULL; ++cnt, mfp = SH_TAILQ_NEXT(mfp, q, __mpoolfile));
+ (void)fprintf(fp, "%d total files\n", cnt);
+ for (cnt = 1, mfp = SH_TAILQ_FIRST(&dbmp->mp->mpfq, __mpoolfile);
+ mfp != NULL; ++cnt, mfp = SH_TAILQ_NEXT(mfp, q, __mpoolfile)) {
+ (void)fprintf(fp, "file %d\n", cnt);
+ __memp_pmf(fp, mfp, data);
+ }
+
+ if (!data)
+ return;
+
+ /* Display the hash table list of BH's. */
+ (void)fprintf(fp, "%s\nHASH table of BH's (%lu buckets):\n",
+ DB_LINE, (u_long)mp->htab_buckets);
+ (void)fprintf(fp,
+ "longest chain searched %lu\n", mp->stat.st_hash_longest);
+ (void)fprintf(fp, "average chain searched %lu (total/calls: %lu/%lu)\n",
+ mp->stat.st_hash_examined /
+ (mp->stat.st_hash_searches ? mp->stat.st_hash_searches : 1),
+ mp->stat.st_hash_examined, mp->stat.st_hash_searches);
+ for (htabp = dbmp->htab,
+ bucket = 0; bucket < mp->htab_buckets; ++htabp, ++bucket) {
+ if (SH_TAILQ_FIRST(&dbmp->htab[bucket], __bh) != NULL)
+ (void)fprintf(fp, "%lu:\n", (u_long)bucket);
+ for (bhp = SH_TAILQ_FIRST(&dbmp->htab[bucket], __bh);
+ bhp != NULL; bhp = SH_TAILQ_NEXT(bhp, mq, __bh))
+ __memp_pbh(fp, dbmp, bhp, data);
+ }
+
+ /* Display the LRU list of BH's. */
+ (void)fprintf(fp, "LRU list of BH's (pgno/offset):");
+ for (sep = "\n ", bhp = SH_TAILQ_FIRST(&dbmp->mp->bhq, __bh);
+ bhp != NULL; sep = ", ", bhp = SH_TAILQ_NEXT(bhp, q, __bh))
+ (void)fprintf(fp, "%s%lu/%lu", sep,
+ (u_long)bhp->pgno, (u_long)OFFSET(dbmp, bhp));
+ (void)fprintf(fp, "\n");
+}
+
+/*
+ * __memp_pmf --
+ * Display an MPOOLFILE structure.
+ */
+static void
+__memp_pmf(fp, mfp, data)
+ FILE *fp;
+ MPOOLFILE *mfp;
+ int data;
+{
+ (void)fprintf(fp, " %lu pages created\n", mfp->stat.st_page_create);
+ (void)fprintf(fp, " %lu I/O's (%lu read, %lu written)\n",
+ mfp->stat.st_page_in + mfp->stat.st_page_out,
+ mfp->stat.st_page_in, mfp->stat.st_page_out);
+ if (mfp->stat.st_cache_hit + mfp->stat.st_cache_miss != 0)
+ (void)fprintf(fp,
+ " %.0f%% cache hit rate (%lu hit, %lu miss)\n",
+ ((double)mfp->stat.st_cache_hit /
+ (mfp->stat.st_cache_hit + mfp->stat.st_cache_miss)) * 100,
+ mfp->stat.st_cache_hit, mfp->stat.st_cache_miss);
+ if (!data)
+ return;
+
+ (void)fprintf(fp, " %d references; %s; pagesize: %lu\n", mfp->ref,
+ mfp->can_mmap ? "mmap" : "read/write",
+ (u_long)mfp->stat.st_pagesize);
+}
+
+/*
+ * __memp_pbh --
+ * Display a BH structure.
+ */
+static void
+__memp_pbh(fp, dbmp, bhp, data)
+ FILE *fp;
+ DB_MPOOL *dbmp;
+ BH *bhp;
+ int data;
+{
+ const char *sep;
+
+ if (!data)
+ return;
+
+ (void)fprintf(fp, " BH @ %lu (mf: %lu): page %lu; ref %lu",
+ (u_long)OFFSET(dbmp, bhp),
+ (u_long)bhp->mf_offset, (u_long)bhp->pgno, (u_long)bhp->ref);
+ sep = "; ";
+ if (F_ISSET(bhp, BH_DIRTY)) {
+ (void)fprintf(fp, "%sdirty", sep);
+ sep = ", ";
+ }
+ if (F_ISSET(bhp, BH_WRITE)) {
+ (void)fprintf(fp, "%schk_write", sep);
+ sep = ", ";
+ }
+ (void)fprintf(fp, "\n");
+}
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