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372 lines
12 KiB
C++
372 lines
12 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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// Test keyrange
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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 const char *fname = TOKU_TEST_FILENAME;
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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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toku_cachetable_close(&ct);
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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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toku_cachetable_create(&ct, 0, ZERO_LSN, nullptr);
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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 (uint64_t limit) {
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// insert keys 1, 3, 5, ...
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for (uint64_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 fts 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 fts, reopen them, but leave the state on disk.
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};
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static void maybe_reopen (enum memory_state ms, uint64_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 verify_keysrange(enum memory_state UU(ms), uint64_t limit,
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uint64_t intkey1,
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uint64_t intkey2,
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uint64_t less,
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uint64_t equal1,
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uint64_t middle,
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uint64_t equal2,
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uint64_t greater,
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bool middle3exact) {
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uint64_t max_item = limit * 2 - 1;
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uint64_t perfect_total = limit;
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uint64_t perfect_less = intkey1 / 2;
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uint64_t perfect_equal1 = intkey1 % 2 == 1;
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uint64_t perfect_equal2 = intkey2 % 2 == 1 && intkey2 <= max_item;
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uint64_t perfect_greater = intkey2 >= max_item ? 0 : (max_item + 1 - intkey2) / 2;
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uint64_t perfect_middle = perfect_total - perfect_less - perfect_equal1 - perfect_equal2 - perfect_greater;
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uint64_t total = less + equal1 + middle + equal2 + greater;
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assert(total > 0);
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assert(total < 2 * perfect_total);
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assert(total > perfect_total / 2);
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assert(equal1 == perfect_equal1 || (equal1 == 0 && !middle3exact));
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assert(equal2 == perfect_equal2 || (equal2 == 0 && !middle3exact));
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// As of 2013-02-25 this is accurate with fiddle ~= total/50.
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// Set to 1/10th to prevent flakiness.
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uint64_t fiddle = perfect_total / 10;
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assert(less + fiddle > perfect_less);
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assert(less < perfect_less + fiddle);
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assert(middle + fiddle > perfect_middle);
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assert(middle < perfect_middle + fiddle);
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assert(greater + fiddle > perfect_greater);
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assert(greater < perfect_greater + fiddle);
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if (middle3exact) {
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assert(middle == perfect_middle);
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}
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}
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static void test_keyrange (enum memory_state ms, uint64_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 (uint64_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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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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}
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{
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struct ftstat64_s s;
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toku_ft_handle_stat64(t, null_txn, &s);
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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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uint64_t prev_less = 0, prev_greater = 1LL << 60;
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uint64_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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uint64_t equal_count = 0;
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// lookup keys 1, 3, 5, ...
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for (uint64_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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uint64_t less,equal,greater;
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toku_ft_keyrange(t, toku_fill_dbt(&k, key, 1+strlen(key)), &less, &equal, &greater);
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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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// However, "both" keys can be in the same basement (specifically the last basement node in the tree)
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// Without trying to figure out how many are in the last basement node, we expect at least the first half not to be in the last basement node.
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assert(i > limit / 2 || 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 (uint64_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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uint64_t less,equal,greater;
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toku_ft_keyrange(t, toku_fill_dbt(&k, key, 1+strlen(key)), &less, &equal, &greater);
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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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maybe_reopen(ms, limit);
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{
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uint64_t totalqueries = 0;
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uint64_t num_middle3_exact = 0;
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for (uint64_t i=0; i < 2*limit; i++) {
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char key[100];
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char keyplus4[100];
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char keyplus5[100];
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uint64_t intkey = i;
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snprintf(key, 100, "%08" PRIu64 "", intkey);
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snprintf(keyplus4, 100, "%08" PRIu64 "", intkey+4);
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snprintf(keyplus5, 100, "%08" PRIu64 "", intkey+5);
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DBT k;
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DBT k2;
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DBT k3;
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toku_fill_dbt(&k, key, 1+strlen(key));
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toku_fill_dbt(&k2, keyplus4, 1+strlen(keyplus4));
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toku_fill_dbt(&k3, keyplus5, 1+strlen(keyplus5));
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uint64_t less,equal1,middle,equal2,greater;
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bool middle3exact;
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toku_ft_keysrange(t, &k, &k2, &less, &equal1, &middle, &equal2, &greater, &middle3exact);
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if (ms == CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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//TODO(yoni): when reading basement nodes is implemented, get rid of this hack
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middle3exact = false;
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}
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totalqueries++;
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num_middle3_exact += middle3exact;
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if (verbose > 1) {
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printf("Rkey2 %" PRIu64 "/%" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %s\n",
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intkey, 2*limit, less, equal1, middle, equal2, greater, middle3exact ? "true" : "false");
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}
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verify_keysrange(ms, limit, intkey, intkey+4,
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less, equal1, middle, equal2, greater, middle3exact);
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toku_ft_keysrange(t, &k, &k3, &less, &equal1, &middle, &equal2, &greater, &middle3exact);
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if (ms == CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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//TODO(yoni): when reading basement nodes is implemented, get rid of this hack
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middle3exact = false;
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}
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totalqueries++;
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num_middle3_exact += middle3exact;
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if (verbose > 1) {
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printf("Rkey3 %" PRIu64 "/%" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %" PRIu64
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" %s\n",
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intkey, 2*limit, less, equal1, middle, equal2, greater, middle3exact ? "true" : "false");
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}
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verify_keysrange(ms, limit, intkey, intkey+5,
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less, equal1, middle, equal2, greater, middle3exact);
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}
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assert(num_middle3_exact <= totalqueries);
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if (ms == CLOSE_AND_REOPEN_LEAVE_ON_DISK) {
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//TODO(yoni): when reading basement nodes is implemented, get rid of this hack
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assert(num_middle3_exact == 0);
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} else {
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// About 85% of the time, the key for an int (and +4 or +5) is in the
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// same basement node. Check >= 70% so this isn't very flaky.
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assert(num_middle3_exact > totalqueries * 7 / 10);
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}
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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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uint64_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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