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ldb: perf test for pack format

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Performance test for pack function and unpack function run with flag
LDB_UNPACK_DATA_FLAG_NO_DATA_ALLOC. Run this test before and after
forthcoming pack format changes to test throughput improvement. On my
machine, the unpack improvement is around 50%.
The test doesn't really belong in LDB torture but it's the only place
where all the required functions are available.

Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This commit is contained in:
Aaron Haslett 2019-04-30 16:10:26 +12:00 committed by Andrew Bartlett
parent ea7fd52a78
commit a36e20c40c
1 changed files with 79 additions and 0 deletions
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79
source4/torture/ldb/ldb.c
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@ -31,6 +31,7 @@
#include "param/param.h"
#include "torture/smbtorture.h"
#include "torture/local/proto.h"
#include <time.h>
static const char *sid = "S-1-5-21-4177067393-1453636373-93818737";
static const char *hex_sid = "01040000000000051500000081fdf8f815bba456718f9705";
@ -1185,6 +1186,82 @@ static bool torture_ldb_parse_ldif(struct torture_context *torture)
return true;
}
static bool torture_ldb_pack_format_perf(struct torture_context *torture)
{
TALLOC_CTX *mem_ctx = talloc_new(torture);
char *unp_ldif_text = talloc_strndup(mem_ctx, dda1d01d_ldif,
sizeof(dda1d01d_ldif)-1);
const char *ldif_text;
struct ldb_context *ldb;
struct ldb_ldif *ldif;
struct ldb_val binary;
struct ldb_message *msg = ldb_msg_new(mem_ctx);
int ret, i;
clock_t start, diff;
ldb = samba_ldb_init(mem_ctx, torture->ev, NULL,NULL,NULL);
torture_assert(torture,
ldb != NULL,
"Failed to init ldb");
unp_ldif_text[sizeof(dda1d01d_ldif)-2] = '\0';
ldif_text = unp_ldif_text;
for (i=0; i<10000; i++) {
ldif_text = talloc_asprintf_append(
discard_const_p(char, ldif_text),
"member: fillerfillerfillerfillerfillerfiller"
"fillerfillerfillerfillerfillerfillerfiller"
"fillerfillerfillerfillerfiller-group%d\n", i);
}
ldif = ldb_ldif_read_string(ldb, &ldif_text);
torture_assert(torture,
ldif != NULL,
"ldb_ldif_read_string failed");
torture_assert_int_equal(torture, ldif->changetype, LDB_CHANGETYPE_NONE,
"changetype is incorrect");
torture_assert_int_equal(torture,
ldb_pack_data(ldb, ldif->msg, &binary), 0,
"ldb_pack_data failed");
ret = ldb_unpack_data(ldb, &binary, msg);
torture_assert_int_equal(torture, ret, 0,
"ldb_unpack_data failed");
torture_assert(torture,
helper_ldb_message_compare(torture, ldif->msg, msg),
"Forms differ in memory");
i = 0;
start = clock();
while (true) {
ldb_pack_data(ldb, ldif->msg, &binary);
i++;
if (i >= 1000) {
break;
}
}
diff = (clock() - start) * 1000 / CLOCKS_PER_SEC;
printf("\n%d pack runs took: %ldms\n", i, diff);
i = 0;
start = clock();
while (true) {
ldb_unpack_data(ldb, &binary, msg);
i++;
if (i >= 1000) {
break;
}
}
diff = (clock() - start) * 1000 / CLOCKS_PER_SEC;
printf("%d unpack runs took: %ldms\n", i, diff);
return true;
}
static bool torture_ldb_unpack_only_attr_list(struct torture_context *torture)
{
TALLOC_CTX *mem_ctx = talloc_new(torture);
@ -1319,6 +1396,8 @@ struct torture_suite *torture_ldb(TALLOC_CTX *mem_ctx)
torture_ldb_parse_ldif);
torture_suite_add_simple_test(suite, "unpack-data-only-attr-list",
torture_ldb_unpack_only_attr_list);
torture_suite_add_simple_test(suite, "pack-format-perf",
torture_ldb_pack_format_perf);
suite->description = talloc_strdup(suite, "LDB (samba-specific behaviour) tests");