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224 lines
6.6 KiB
C
224 lines
6.6 KiB
C
/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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#ident "Copyright (c) 2008-2011 Tokutek Inc. All rights reserved."
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// Test keyrange
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#include "includes.h"
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#include "test.h"
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#include <unistd.h>
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static TOKUTXN const null_txn = 0;
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static DB * const null_db = 0;
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static char fname[]= __SRCFILE__ ".ft_handle";
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static CACHETABLE ct;
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static FT_HANDLE t;
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static void close_ft_and_ct (void) {
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int r;
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r = toku_close_ft_handle_nolsn(t, 0); assert(r==0);
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r = toku_cachetable_close(&ct); assert(r==0);
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}
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static void open_ft_and_ct (bool unlink_old) {
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int r;
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if (unlink_old) unlink(fname);
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r = toku_create_cachetable(&ct, 0, ZERO_LSN, NULL_LOGGER); assert(r==0);
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r = toku_open_ft_handle(fname, 1, &t, 1<<12, 1<<9, TOKU_DEFAULT_COMPRESSION_METHOD, ct, null_txn, toku_builtin_compare_fun); assert(r==0);
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}
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static void close_and_reopen (void) {
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close_ft_and_ct();
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open_ft_and_ct(false);
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}
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static void reload (u_int64_t limit) {
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// insert keys 1, 3, 5, ...
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for (u_int64_t i=0; i<limit; i++) {
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char key[100],val[100];
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snprintf(key, 100, "%08llu", (unsigned long long)2*i+1);
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snprintf(val, 100, "%08llu", (unsigned long long)2*i+1);
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ft_lookup_and_check_nodup(t, key, val);
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}
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}
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enum memory_state {
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LEAVE_IN_MEMORY, // leave the state in main memory
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CLOSE_AND_RELOAD, // close the brts and reload them into main memory (that will cause >1 partitio in many leaves.)
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CLOSE_AND_REOPEN_LEAVE_ON_DISK // close the brts, reopen them, but leave the state on disk.
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};
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static void maybe_reopen (enum memory_state ms, u_int64_t limit) {
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switch (ms) {
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case CLOSE_AND_RELOAD:
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close_and_reopen();
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reload(limit);
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return;
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case CLOSE_AND_REOPEN_LEAVE_ON_DISK:
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close_and_reopen();
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return;
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case LEAVE_IN_MEMORY:
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return;
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}
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assert(0);
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}
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static void test_keyrange (enum memory_state ms, u_int64_t limit) {
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open_ft_and_ct(true);
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// insert keys 1, 3, 5, ...
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for (u_int64_t i=0; i<limit; i++) {
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char key[100],val[100];
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snprintf(key, 100, "%08llu", (unsigned long long)2*i+1);
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snprintf(val, 100, "%08llu", (unsigned long long)2*i+1);
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DBT k,v;
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int r = toku_ft_insert(t, toku_fill_dbt(&k, key, 1+strlen(key)), toku_fill_dbt(&v,val, 1+strlen(val)), null_txn);
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assert(r == 0);
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}
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{
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struct ftstat64_s s;
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int r = toku_ft_handle_stat64(t, null_txn, &s); assert(r == 0);
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assert(0 < s.nkeys && s.nkeys < limit);
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assert(0 < s.dsize && s.dsize < limit * (9 + 9)); // keylen = 9, vallen = 9
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}
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maybe_reopen(ms, limit);
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{
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u_int64_t prev_less = 0, prev_greater = 1LL << 60;
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u_int64_t count_less_adjacent = 0, count_greater_adjacent = 0; // count the number of times that the next value is 1 more (less) than the previous.
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u_int64_t equal_count = 0;
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// lookup keys 1, 3, 5, ...
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for (u_int64_t i=0; i<limit; i++) {
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char key[100];
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snprintf(key, 100, "%08llu", (unsigned long long)2*i+1);
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DBT k;
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u_int64_t less,equal,greater;
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int r = toku_ft_keyrange(t, toku_fill_dbt(&k, key, 1+strlen(key)), &less, &equal, &greater);
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assert(r == 0);
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if (verbose > 1)
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printf("Pkey %llu/%llu %llu %llu %llu\n", (unsigned long long)2*i+1, (unsigned long long)2*limit, (unsigned long long)less, (unsigned long long)equal, (unsigned long long)greater);
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assert(0 < less + equal + greater);
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assert(less + equal + greater <= 2 * limit);
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assert(equal == 0 || equal == 1);
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// It's an estimate, and the values don't even change monotonically.
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// And all the leaves are in main memory so it's always present.
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if (ms!=CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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if (equal==1) equal_count++;
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#if 0
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// The first few items are exact for less.
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if (i<70) {
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assert(less==i);
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}
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// The last few items are exact for greater.
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if (limit-i<70) {
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assert(greater<=limit-i-1);
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}
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#endif
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} else {
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// after reopen, none of the basements are in memory
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assert(equal == 0);
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#if 0
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if (i<10) {
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assert(less==0);
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}
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if (limit-i<10) {
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assert(greater==0);
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}
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#endif
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}
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// Count the number of times that prev_less is 1 less than less.
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if (prev_less+1 == less) {
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count_less_adjacent++;
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}
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if (prev_greater-1 == greater) {
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count_greater_adjacent++;
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}
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// the best we can do: It's an estimate. At least in the current implementation for this test (which has small rows)
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// the estimate grows monotonically as the leaf grows.
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prev_less = less;
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prev_greater = greater;
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}
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if (ms!=CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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// If we were doing the in-memory case then most keys are adjacent.
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assert(count_less_adjacent >= 0.9 * limit); // we expect at least 90% to be right.
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assert(count_greater_adjacent >= 0.9 * limit); // we expect at least 90% to be right.
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assert(equal_count >= 0.9 * limit);
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}
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}
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maybe_reopen(ms, limit);
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// lookup keys 0, 2, 4, ... not in the tree
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for (u_int64_t i=0; i<1+limit; i++) {
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char key[100];
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snprintf(key, 100, "%08llu", (unsigned long long)2*i);
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DBT k;
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u_int64_t less,equal,greater;
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int r = toku_ft_keyrange(t, toku_fill_dbt(&k, key, 1+strlen(key)), &less, &equal, &greater);
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assert(r == 0);
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if (verbose > 1)
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printf("Akey %llu/%llu %llu %llu %llu\n", (unsigned long long)2*i, (unsigned long long)2*limit, (unsigned long long)less, (unsigned long long)equal, (unsigned long long)greater);
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assert(0 < less + equal + greater);
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assert(less + equal + greater <= 2 * limit);
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assert(equal == 0);
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#if 0
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// The first few items are exact (looking a key that's not there)
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if (ms!=CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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if (i<70) {
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assert(less==i);
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}
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// The last few items are exact (looking up a key that's not there)
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if (limit-i<70) {
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assert(greater<=limit-i);
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}
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} else {
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if (i<10) {
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assert(less==0);
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}
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if (limit-i<10) {
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assert(greater==0);
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}
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}
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#endif
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}
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close_ft_and_ct();
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}
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int
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test_main (int argc , const char *argv[]) {
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u_int64_t limit = 30000;
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for (int i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-v") == 0) {
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verbose++;
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continue;
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}
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if (strcmp(argv[i], "-q") == 0) {
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if (verbose > 0) verbose--;
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continue;
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}
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if (strcmp(argv[i], "-n") == 0 && i+1 < argc) {
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limit = atoll(argv[++i]);
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continue;
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}
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}
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test_keyrange(LEAVE_IN_MEMORY, limit);
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test_keyrange(CLOSE_AND_REOPEN_LEAVE_ON_DISK, limit);
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test_keyrange(CLOSE_AND_RELOAD, limit);
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if (verbose) printf("test ok\n");
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return 0;
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}
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