1 files changed, 378 insertions, 0 deletions

diff --git a/src/service/namestore/perf_namestore_api_zone_iteration.c b/src/service/namestore/perf_namestore_api_zone_iteration.c
new file mode 100644
index 000000000..1b669fdac
--- /dev/null
+++ b/src/service/namestore/perf_namestore_api_zone_iteration.c
@@ -0,0 +1,378 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2013, 2018 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file namestore/perf_namestore_api_zone_iteration.c
+ * @brief testcase for zone iteration functionality: iterate all zones
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_namestore_service.h"
+#include "gnunet_testing_lib.h"
+#include "../service/namestore/namestore.h"
+
+#define TEST_RECORD_TYPE GNUNET_DNSPARSER_TYPE_TXT
+
+/**
+ * A #BENCHMARK_SIZE of 1000 takes less than a minute on a reasonably
+ * modern system, so 30 minutes should be OK even for very, very
+ * slow systems.
+ */
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 30)
+
+/**
+ * The runtime of the benchmark is expected to be linear
+ * for the iteration phase with a *good* database.  The FLAT
+ * database uses a quadratic retrieval algorithm,
+ * hence it should be quadratic in the size.
+ */
+#define BENCHMARK_SIZE 1000
+
+/**
+ * Maximum record size
+ */
+#define MAX_REC_SIZE 500
+
+/**
+ * How big are the blocks we fetch? Note that the first block is
+ * always just 1 record set per current API.  Smaller block
+ * sizes will make quadratic iteration-by-offset penalties
+ * more pronounced.
+ */
+#define BLOCK_SIZE 100
+
+static struct GNUNET_NAMESTORE_Handle *nsh;
+
+static struct GNUNET_SCHEDULER_Task *timeout_task;
+
+static struct GNUNET_SCHEDULER_Task *t;
+
+static struct GNUNET_CRYPTO_PrivateKey privkey;
+
+static struct GNUNET_NAMESTORE_ZoneIterator *zi;
+
+static struct GNUNET_NAMESTORE_QueueEntry *qe;
+
+static int res;
+
+static unsigned int off;
+
+static unsigned int left_until_next;
+
+static uint8_t seen[1 + BENCHMARK_SIZE / 8];
+
+static struct GNUNET_TIME_Absolute start;
+
+
+/**
+ * Terminate everything
+ *
+ * @param cls NULL
+ */
+static void
+end (void *cls)
+{
+  (void) cls;
+  if (NULL != qe)
+  {
+    GNUNET_NAMESTORE_cancel (qe);
+    qe = NULL;
+  }
+  if (NULL != zi)
+  {
+    GNUNET_NAMESTORE_zone_iteration_stop (zi);
+    zi = NULL;
+  }
+  if (NULL != nsh)
+  {
+    GNUNET_NAMESTORE_disconnect (nsh);
+    nsh = NULL;
+  }
+  if (NULL != t)
+  {
+    GNUNET_SCHEDULER_cancel (t);
+    t = NULL;
+  }
+  if (NULL != timeout_task)
+  {
+    GNUNET_SCHEDULER_cancel (timeout_task);
+    timeout_task = NULL;
+  }
+}
+
+
+/**
+ * End with timeout. As this is a benchmark, we do not
+ * fail hard but return "skipped".
+ */
+static void
+timeout (void *cls)
+{
+  (void) cls;
+  timeout_task = NULL;
+  GNUNET_SCHEDULER_shutdown ();
+  res = 77;
+}
+
+
+static struct GNUNET_GNSRECORD_Data *
+create_record (unsigned int count)
+{
+  struct GNUNET_GNSRECORD_Data *rd;
+
+  rd = GNUNET_malloc (count + sizeof(struct GNUNET_GNSRECORD_Data));
+  rd->expiration_time = GNUNET_TIME_relative_to_absolute (
+    GNUNET_TIME_UNIT_HOURS).abs_value_us;
+  rd->record_type = TEST_RECORD_TYPE;
+  rd->data_size = count;
+  rd->data = (void *) &rd[1];
+  rd->flags = 0;
+  memset (&rd[1],
+          'a',
+          count);
+  return rd;
+}
+
+
+static void
+zone_end (void *cls)
+{
+  struct GNUNET_TIME_Relative delay;
+
+  zi = NULL;
+  delay = GNUNET_TIME_absolute_get_duration (start);
+  fprintf (stdout,
+           "Iterating over %u records took %s\n",
+           off,
+           GNUNET_STRINGS_relative_time_to_string (delay,
+                                                   GNUNET_YES));
+  if (BENCHMARK_SIZE == off)
+  {
+    res = 0;
+  }
+  else
+  {
+    GNUNET_break (0);
+    res = 1;
+  }
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+static void
+fail_cb (void *cls)
+{
+  zi = NULL;
+  res = 2;
+  GNUNET_break (0);
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+static void
+zone_proc (void *cls,
+           const struct GNUNET_CRYPTO_PrivateKey *zone,
+           const char *label,
+           unsigned int rd_count,
+           const struct GNUNET_GNSRECORD_Data *rd)
+{
+  struct GNUNET_GNSRECORD_Data *wrd;
+  unsigned int xoff;
+
+  GNUNET_assert (NULL != zone);
+  if (1 != sscanf (label,
+                   "l%u",
+                   &xoff))
+  {
+    res = 3;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  if ((xoff > BENCHMARK_SIZE) ||
+      (0 != (seen[xoff / 8] & (1U << (xoff % 8)))))
+  {
+    res = 3;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  seen[xoff / 8] |= (1U << (xoff % 8));
+  wrd = create_record (xoff % MAX_REC_SIZE);
+  if ((rd->record_type != wrd->record_type) ||
+      (rd->data_size != wrd->data_size) ||
+      (rd->flags != wrd->flags))
+  {
+    res = 4;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    GNUNET_free (wrd);
+    return;
+  }
+  if (0 != memcmp (rd->data,
+                   wrd->data,
+                   wrd->data_size))
+  {
+    res = 4;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    GNUNET_free (wrd);
+    return;
+  }
+  GNUNET_free (wrd);
+  if (0 != GNUNET_memcmp (zone,
+                          &privkey))
+  {
+    res = 5;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  off++;
+  left_until_next--;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Obtained record %u, expecting %u more until asking for more explicitly\n",
+              off,
+              left_until_next);
+  if (0 == left_until_next)
+  {
+    left_until_next = BLOCK_SIZE;
+    GNUNET_NAMESTORE_zone_iterator_next (zi,
+                                         left_until_next);
+  }
+}
+
+
+static void
+publish_record (void *cls);
+
+
+static void
+put_cont (void *cls,
+          enum GNUNET_ErrorCode ec)
+{
+  (void) cls;
+  qe = NULL;
+  if (GNUNET_EC_NONE != ec)
+  {
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  t = GNUNET_SCHEDULER_add_now (&publish_record,
+                                NULL);
+}
+
+
+static void
+publish_record (void *cls)
+{
+  struct GNUNET_GNSRECORD_Data *rd;
+  char *label;
+
+  (void) cls;
+  t = NULL;
+  if (BENCHMARK_SIZE == off)
+  {
+    struct GNUNET_TIME_Relative delay;
+
+    delay = GNUNET_TIME_absolute_get_duration (start);
+    fprintf (stdout,
+             "Inserting %u records took %s\n",
+             off,
+             GNUNET_STRINGS_relative_time_to_string (delay,
+                                                     GNUNET_YES));
+    start = GNUNET_TIME_absolute_get ();
+    off = 0;
+    left_until_next = 1;
+    zi = GNUNET_NAMESTORE_zone_iteration_start (nsh,
+                                                NULL,
+                                                &fail_cb,
+                                                NULL,
+                                                &zone_proc,
+                                                NULL,
+                                                &zone_end,
+                                                NULL);
+    GNUNET_assert (NULL != zi);
+    return;
+  }
+  rd = create_record ((++off) % MAX_REC_SIZE);
+  GNUNET_asprintf (&label,
+                   "l%u",
+                   off);
+  qe = GNUNET_NAMESTORE_records_store (nsh,
+                                       &privkey,
+                                       label,
+                                       1, rd,
+                                       &put_cont,
+                                       NULL);
+  GNUNET_free (label);
+  GNUNET_free (rd);
+}
+
+
+static void
+run (void *cls,
+     const struct GNUNET_CONFIGURATION_Handle *cfg,
+     struct GNUNET_TESTING_Peer *peer)
+{
+  GNUNET_SCHEDULER_add_shutdown (&end,
+                                 NULL);
+  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
+                                               &timeout,
+                                               NULL);
+  nsh = GNUNET_NAMESTORE_connect (cfg);
+  GNUNET_assert (NULL != nsh);
+  privkey.type = htonl (GNUNET_GNSRECORD_TYPE_PKEY);
+  GNUNET_CRYPTO_ecdsa_key_create (&privkey.ecdsa_key);
+  start = GNUNET_TIME_absolute_get ();
+  t = GNUNET_SCHEDULER_add_now (&publish_record,
+                                NULL);
+}
+
+
+#include "test_common.c"
+
+
+int
+main (int argc,
+      char *argv[])
+{
+  char *plugin_name;
+  char *cfg_name;
+
+  SETUP_CFG (plugin_name, cfg_name);
+  res = 1;
+  if (0 !=
+      GNUNET_TESTING_peer_run ("perf-namestore-api-zone-iteration",
+                               cfg_name,
+                               &run,
+                               NULL))
+  {
+    res = 1;
+  }
+  GNUNET_DISK_purge_cfg_dir (cfg_name,
+                             "GNUNET_TEST_HOME");
+  GNUNET_free (plugin_name);
+  GNUNET_free (cfg_name);
+  return res;
+}
+
+
+/* end of perf_namestore_api_zone_iteration.c */