/*
* Copyright (c) 1995-1998, Index Data.
* See the file LICENSE for details.
- * $Id: isamd.c,v 1.15 1999-09-27 14:36:36 heikki Exp $
+ * $Id: isamd.c,v 1.19 1999-11-30 13:48:04 adam Exp $
*
* Isamd - isam with diffs
* Programmed by: Heikki Levanto
#include <string.h>
#include <stdio.h>
-#include <log.h>
+#include <yaz/log.h>
#include "../index/index.h" /* isamd uses the internal structure of it_key */
#include "isamd-p.h"
{ 32, 40 }, /* 24 is the smallest unreasonable size! */
{ 64, 0 },
#else
+ { 64, 1 },
+ { 128, 1 },
+ { 256, 1 },
+ { 512, 1 },
+ { 1024, 1 },
+ { 2048, 1 },
+ { 4096, 1 },
+ { 8192, 0 },
+
+#endif
+#ifdef SKIPTHIS
+
+
+
{ 32, 1 },
{ 128, 1 },
{ 512, 1 },
{ 8192, 1 },
{ 32768, 1 },
{131072, 0 },
-#endif
-/* old values from isamc, long time ago...
- { 24, 40 },
- { 128, 256 },
- { 512, 1024 },
- { 2048, 4096 },
- { 8192,16384 },
- { 32768, 0 },
-*/
+ { 24, 1 }, /* Experimental sizes */
+ { 32, 1 },
+ { 64, 1 },
+ { 128, 1 },
+ { 256, 1 },
+ { 512, 1 },
+ { 1024, 1 },
+ { 2048, 0 },
+#endif
};
ISAMD_M m = (ISAMD_M) xmalloc (sizeof(*m)); /* never released! */
is->files[i].sum_backward = 0;
is->files[i].no_next = 0;
is->files[i].no_prev = 0;
- is->files[i].no_op_nodiff=0;
- is->files[i].no_op_intdiff=0;
- is->files[i].no_op_extdiff=0;
- is->files[i].no_fbuilds=0;
- is->files[i].no_appds=0;
- is->files[i].no_merges=0;
- is->files[i].no_remerges=0;
-
+ is->files[i].no_op_diffonly=0;
+ is->files[i].no_op_main=0;
init_fc (is, i);
}
+ is->last_pos=0;
+ is->last_cat=0;
+ is->no_read=0;
+ is->no_read_main=0;
+ is->no_write=0;
+ is->no_op_single=0;
+ is->no_op_new=0;
+ is->no_read_keys=0;
+ is->no_read_eof=0;
+ is->no_seek_nxt=0;
+ is->no_seek_sam=0;
+ is->no_seek_fwd=0;
+ is->no_seek_prv=0;
+ is->no_seek_bak=0;
+ is->no_seek_cat=0;
+ is->no_fbuilds=0;
+ is->no_appds=0;
+ is->no_merges=0;
+ is->no_non=0;
+ is->no_singles=0;
+
return is;
}
int isamd_block_used (ISAMD is, int type)
{
+ if ( type==-1) /* singleton */
+ return 0;
if (type < 0 || type >= is->no_files)
return -1;
return is->files[type].head.lastblock-1;
int isamd_block_size (ISAMD is, int type)
{
ISAMD_filecat filecat = is->method->filecat;
+ if ( type==-1) /* singleton */
+ return 0; /* no bytes used */
if (type < 0 || type >= is->no_files)
return -1;
return filecat[type].bsize;
int isamd_close (ISAMD is)
{
int i;
+ int s;
if (is->method->debug>0)
{
logf (LOG_LOG, "isamd statistics");
- logf (LOG_LOG, "f nxt forw mid-f prev backw mid-b");
+ logf (LOG_LOG, "f nxt forw mid-f prev backw mid-b");
for (i = 0; i<is->no_files; i++)
- logf (LOG_LOG, "%d%8d%8d%8.1f%8d%8d%8.1f",i,
+ logf (LOG_LOG, "%d%7d%7d%7.1f%7d%7d%7.1f",i,
is->files[i].no_next,
is->files[i].no_forward,
is->files[i].no_forward ?
- (double) is->files[i].sum_forward/is->files[i].no_forward
- : 0.0,
+ (double) is->files[i].sum_forward/is->files[i].no_forward
+ : 0.0,
is->files[i].no_prev,
is->files[i].no_backward,
is->files[i].no_backward ?
- (double) is->files[i].sum_backward/is->files[i].no_backward
- : 0.0);
+ (double) is->files[i].sum_backward/is->files[i].no_backward
+ : 0.0);
}
if (is->method->debug>0)
logf (LOG_LOG, "f writes reads skipped alloc released ");
if (is->method->debug>0)
{
- logf (LOG_LOG, "f opens simple int ext");
+ logf (LOG_LOG, "f opens main diffonly");
for (i = 0; i<is->no_files; i++)
{
- logf (LOG_LOG, "%d%8d%8d%8d%8d",i,
- is->files[i].no_op_nodiff+
- is->files[i].no_op_intdiff+
- is->files[i].no_op_extdiff,
- is->files[i].no_op_nodiff,
- is->files[i].no_op_intdiff,
- is->files[i].no_op_extdiff);
+ logf (LOG_LOG, "%d%8d%8d%8d",i,
+ is->files[i].no_op_main+
+ is->files[i].no_op_diffonly,
+ is->files[i].no_op_main,
+ is->files[i].no_op_diffonly);
}
- logf (LOG_LOG, " build append merge remrg");
- logf (LOG_LOG, "=%8d%8d%8d%8d",
- is->files[0].no_fbuilds,
- is->files[0].no_appds,
- is->files[0].no_merges,
- is->files[0].no_remerges);
+ logf(LOG_LOG,"open single %8d", is->no_op_single);
+ logf(LOG_LOG,"open new %8d", is->no_op_new);
+
+ logf(LOG_LOG, "new build %8d", is->no_fbuilds);
+ logf(LOG_LOG, "append %8d", is->no_appds);
+ logf(LOG_LOG, " merges %8d", is->no_merges);
+ logf(LOG_LOG, " singles %8d", is->no_singles);
+ logf(LOG_LOG, " no-ops %8d", is->no_non);
+
+ logf(LOG_LOG, "read blocks %8d", is->no_read);
+ logf(LOG_LOG, "read keys: %8d %8.1f k/bl",
+ is->no_read_keys,
+ 1.0*(is->no_read_keys+1)/(is->no_read+1) );
+ logf(LOG_LOG, "read main-k %8d %8.1f %% of keys",
+ is->no_read_main,
+ 100.0*(is->no_read_main+1)/(is->no_read_keys+1) );
+ logf(LOG_LOG, "read ends: %8d %8.1f k/e",
+ is->no_read_eof,
+ 1.0*(is->no_read_keys+1)/(is->no_read_eof+1) );
+ s= is->no_seek_nxt+ is->no_seek_sam+ is->no_seek_fwd +
+ is->no_seek_prv+ is->no_seek_bak+ is->no_seek_cat;
+ if (s==0)
+ s++;
+ logf(LOG_LOG, "seek same %8d %8.1f%%",
+ is->no_seek_sam, 100.0*is->no_seek_sam/s );
+ logf(LOG_LOG, "seek next %8d %8.1f%%",
+ is->no_seek_nxt, 100.0*is->no_seek_nxt/s );
+ logf(LOG_LOG, "seek prev %8d %8.1f%%",
+ is->no_seek_prv, 100.0*is->no_seek_prv/s );
+ logf(LOG_LOG, "seek forw %8d %8.1f%%",
+ is->no_seek_fwd, 100.0*is->no_seek_fwd/s );
+ logf(LOG_LOG, "seek back %8d %8.1f%%",
+ is->no_seek_bak, 100.0*is->no_seek_bak/s );
+ logf(LOG_LOG, "seek cat %8d %8.1f%%",
+ is->no_seek_cat, 100.0*is->no_seek_cat/s );
}
xfree (is->files);
xfree (is->method);
return 0;
}
+static void isamd_seek_stat(ISAMD is, int cat, int pos)
+{
+ if (cat != is->last_cat)
+ is->no_seek_cat++;
+ else if ( pos == is->last_pos)
+ is->no_seek_sam++;
+ else if ( pos == is->last_pos+1)
+ is->no_seek_nxt++;
+ else if ( pos == is->last_pos-1)
+ is->no_seek_prv++;
+ else if ( pos > is->last_pos)
+ is->no_seek_fwd++;
+ else if ( pos < is->last_pos)
+ is->no_seek_bak++;
+ is->last_cat = cat;
+ is->last_pos = pos;
+} /* seek_stat */
+
int isamd_read_block (ISAMD is, int cat, int pos, char *dst)
{
+ isamd_seek_stat(is,cat,pos);
++(is->files[cat].no_reads);
+ ++(is->no_read);
if (is->method->debug > 6)
logf (LOG_LOG, "isamd: read_block %d:%d",cat, pos);
return bf_read (is->files[cat].bf, pos, 0, 0, dst);
int isamd_write_block (ISAMD is, int cat, int pos, char *src)
{
+ isamd_seek_stat(is,cat,pos);
++(is->files[cat].no_writes);
+ ++(is->no_write);
if (is->method->debug > 6)
logf (LOG_LOG, "isamd: write_block %d:%d", cat, pos);
return bf_write (is->files[cat].bf, pos, 0, 0, src);
ipos,ipos,
singlekey.sysno, singlekey.seqno/2,
pp->size );
+ is->no_op_single++;
return pp;
} /* singleton */
pp->cat = isamd_type(ipos);
pp->pos = isamd_block(ipos);
-
+
+ if (0==pp->pos)
+ is->no_op_new++;
+
if (pp->pos)
{
src = pp->buf;
src += sizeof(pp->size);
memcpy (&pp->numKeys, src, sizeof(pp->numKeys));
src += sizeof(pp->numKeys);
- assert (pp->next != pp->pos);
+ assert (pp->next != isamd_addr(pp->pos,pp->cat));
pp->offset = src - pp->buf;
assert (pp->offset == ISAMD_BLOCK_OFFSET_1);
assert(pp->size>=ISAMD_BLOCK_OFFSET_1); /*??*/
+ if (pp->next)
+ is->files[pp->cat].no_op_main++;
+ else
+ is->files[pp->cat].no_op_diffonly++;
}
if (is->method->debug > 5)
logf (LOG_LOG, "isamd_pp_open %p %d=%d:%d sz=%d n=%d=%d:%d",
void isamd_buildfirstblock(ISAMD_PP pp){
char *dst=pp->buf;
assert(pp->buf);
- assert(pp->next != pp->pos);
+ assert(pp->next != isamd_addr(pp->pos,pp->cat));
memcpy(dst, &pp->next, sizeof(pp->next) );
dst += sizeof(pp->next);
memcpy(dst, &pp->size,sizeof(pp->size));
dst += sizeof(pp->size);
memcpy(dst, &pp->numKeys, sizeof(pp->numKeys));
dst += sizeof(pp->numKeys);
-// memcpy(dst, &pp->diffs, sizeof(pp->diffs));
-// dst += sizeof(pp->diffs);
assert (dst - pp->buf == ISAMD_BLOCK_OFFSET_1);
if (pp->is->method->debug > 5)
logf (LOG_LOG, "isamd: bldfirst: p=%d=%d:%d n=%d:%d:%d sz=%d nk=%d ",
newcat = isamd_type(pp->next);
pp->pos = isamd_block(pp->next);
pp->cat = isamd_type(pp->next);
-
+ pp->is->no_read_main++;
src = pp->buf;
/* read block and save 'next' and 'size' entry */
isamd_read_block (is, pp->cat, pp->pos, src);
/*
* $Log: isamd.c,v $
- * Revision 1.15 1999-09-27 14:36:36 heikki
+ * Revision 1.19 1999-11-30 13:48:04 adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.18 1999/10/06 15:18:13 heikki
+ *
+ * Improving block sizes again
+ *
+ * Revision 1.17 1999/10/06 11:46:36 heikki
+ * mproved statistics on isam-d
+ *
+ * Revision 1.16 1999/10/05 09:57:40 heikki
+ * Tuning the isam-d (and fixed a small "detail")
+ *
+ * Revision 1.15 1999/09/27 14:36:36 heikki
* singletons
*
* Revision 1.14 1999/09/23 18:01:18 heikki
* Copied from isamh, starting to change things...
*
*
- */
\ No newline at end of file
+ */
projects / idzebra-moved-to-github.git / blobdiff