Found sqlite benchmark from original paper

benchmarks/Makefile

@@ -1,5 +1,6 @@
 ROOT := ..
 DIRS := histogram kmeans linear_regression matrix_multiply \
-        pbzip2 pca producer_consumer string_match toy word_count
+        pbzip2 pca producer_consumer string_match sqlite \
+				sqlite-modified toy word_count
 
 include $(ROOT)/common.mk

benchmarks/sqlite-modified/Makefile

@@ -0,0 +1,6 @@
+ROOT    := ../..
+TARGETS := sqlite-bench
+LIBS    := -lpthread -ldl
+CFLAGS  := -g -O2 -DSQLITE_THREADSAFE=2 -I.
+
+include $(ROOT)/benchmark.mk

benchmarks/sqlite-modified/main.c

@@ -0,0 +1,105 @@
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sqlite3.h>
+
+#include <coz.h>
+
+#define THREAD_COUNT 32
+#define INSERTIONS_PER_THREAD 10000
+
+void* thread_fn(void* arg) {
+  int id = (int)(intptr_t)arg;
+  
+  int rc;
+  sqlite3* db;
+  char* err;
+
+  if(sqlite3_open(":memory:", &db)) {
+    fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
+    sqlite3_close(db);
+    return NULL;
+  }
+  
+  sqlite3_exec(db, "PRAGMA synchronous=OFF", NULL, NULL, &err);
+  sqlite3_exec(db, "PRAGMA journal_mode=MEMORY", NULL, NULL, &err);
+  
+  char buf[512];
+  sprintf(buf, "DROP TABLE IF EXISTS tab%d", id);
+  
+  do {
+    rc = sqlite3_exec(db, buf, NULL, NULL, &err);
+  } while(rc == SQLITE_BUSY);
+  if(rc) {
+    printf("Error: %s\n", err);
+    abort();
+  }
+  
+  sprintf(buf, "CREATE TABLE tab%d(id INTEGER PRIMARY KEY, x INTEGER, y INTEGER, z TEXT)", id);
+  do {
+    rc = sqlite3_exec(db, buf, NULL, NULL, &err);
+  } while(rc == SQLITE_BUSY);
+  if(rc) {
+    printf("Error: %s\n", err);
+    abort();
+  }
+  
+  sprintf(buf, "INSERT INTO tab%d VALUES(?1, ?2, ?3, ?4)", id);
+  sqlite3_stmt* stmt;
+  sqlite3_prepare_v2(db, buf, strlen(buf), &stmt, NULL);
+ 
+  for (int i=0; i<INSERTIONS_PER_THREAD; i++) {
+    sqlite3_exec(db, "BEGIN TRANSACTION", NULL, NULL, &err);
+  
+    sqlite3_bind_int(stmt, 1, i + id*INSERTIONS_PER_THREAD);
+    sqlite3_bind_int(stmt, 2, 2*i);
+    sqlite3_bind_int(stmt, 3, 3*i);
+    sqlite3_bind_text(stmt, 4, "asdf", 4, SQLITE_STATIC);
+
+    do {
+      rc = sqlite3_step(stmt);
+    } while(rc == SQLITE_BUSY);
+    
+    if(rc != SQLITE_DONE) {
+      printf("Commit Failed!\n%s\n", sqlite3_errmsg(db));
+      abort();
+    }
+    
+    sqlite3_exec(db, "COMMIT TRANSACTION", NULL, NULL, &err);
+    
+    COZ_PROGRESS;
+
+    sqlite3_reset(stmt);
+  }
+  
+  sqlite3_finalize(stmt);
+  
+  sprintf(buf, "DROP TABLE tab%d", id);
+  sqlite3_exec(db, buf, NULL, NULL, &err);
+  
+  sqlite3_close(db);
+  
+  return NULL;
+}
+
+int main(int argc, char **argv){
+  if(sqlite3_threadsafe() != 2) {
+    printf("SQLite is not thread safe. What happened?\n");
+    return 1;
+  }
+  
+  sqlite3_enable_shared_cache(0);
+ 
+  pthread_t threads[THREAD_COUNT];
+  for(uintptr_t i=0; i<THREAD_COUNT; i++) {
+    pthread_create(&threads[i], NULL, thread_fn, (void*)i);
+  }
+  
+  for(int i=0; i<THREAD_COUNT; i++) {
+    pthread_join(threads[i], NULL);
+  }
+  
+  return 0;
+}

benchmarks/sqlite/Makefile

@@ -0,0 +1,6 @@
+ROOT    := ../..
+TARGETS := sqlite-bench
+LIBS    := -lpthread -ldl
+CFLAGS  := -g -O2 -DSQLITE_THREADSAFE=2 -I.
+
+include $(ROOT)/benchmark.mk

benchmarks/sqlite/main.c

@@ -0,0 +1,105 @@
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sqlite3.h>
+
+#include <coz.h>
+
+#define THREAD_COUNT 32
+#define INSERTIONS_PER_THREAD 10000
+
+void* thread_fn(void* arg) {
+  int id = (int)(intptr_t)arg;
+  
+  int rc;
+  sqlite3* db;
+  char* err;
+
+  if(sqlite3_open(":memory:", &db)) {
+    fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
+    sqlite3_close(db);
+    return NULL;
+  }
+  
+  sqlite3_exec(db, "PRAGMA synchronous=OFF", NULL, NULL, &err);
+  sqlite3_exec(db, "PRAGMA journal_mode=MEMORY", NULL, NULL, &err);
+  
+  char buf[512];
+  sprintf(buf, "DROP TABLE IF EXISTS tab%d", id);
+  
+  do {
+    rc = sqlite3_exec(db, buf, NULL, NULL, &err);
+  } while(rc == SQLITE_BUSY);
+  if(rc) {
+    printf("Error: %s\n", err);
+    abort();
+  }
+  
+  sprintf(buf, "CREATE TABLE tab%d(id INTEGER PRIMARY KEY, x INTEGER, y INTEGER, z TEXT)", id);
+  do {
+    rc = sqlite3_exec(db, buf, NULL, NULL, &err);
+  } while(rc == SQLITE_BUSY);
+  if(rc) {
+    printf("Error: %s\n", err);
+    abort();
+  }
+  
+  sprintf(buf, "INSERT INTO tab%d VALUES(?1, ?2, ?3, ?4)", id);
+  sqlite3_stmt* stmt;
+  sqlite3_prepare_v2(db, buf, strlen(buf), &stmt, NULL);
+ 
+  for (int i=0; i<INSERTIONS_PER_THREAD; i++) {
+    sqlite3_exec(db, "BEGIN TRANSACTION", NULL, NULL, &err);
+  
+    sqlite3_bind_int(stmt, 1, i + id*INSERTIONS_PER_THREAD);
+    sqlite3_bind_int(stmt, 2, 2*i);
+    sqlite3_bind_int(stmt, 3, 3*i);
+    sqlite3_bind_text(stmt, 4, "asdf", 4, SQLITE_STATIC);
+
+    do {
+      rc = sqlite3_step(stmt);
+    } while(rc == SQLITE_BUSY);
+    
+    if(rc != SQLITE_DONE) {
+      printf("Commit Failed!\n%s\n", sqlite3_errmsg(db));
+      abort();
+    }
+    
+    sqlite3_exec(db, "COMMIT TRANSACTION", NULL, NULL, &err);
+    
+    COZ_PROGRESS;
+
+    sqlite3_reset(stmt);
+  }
+  
+  sqlite3_finalize(stmt);
+  
+  sprintf(buf, "DROP TABLE tab%d", id);
+  sqlite3_exec(db, buf, NULL, NULL, &err);
+  
+  sqlite3_close(db);
+  
+  return NULL;
+}
+
+int main(int argc, char **argv){
+  if(sqlite3_threadsafe() != 2) {
+    printf("SQLite is not thread safe. What happened?\n");
+    return 1;
+  }
+  
+  sqlite3_enable_shared_cache(0);
+ 
+  pthread_t threads[THREAD_COUNT];
+  for(uintptr_t i=0; i<THREAD_COUNT; i++) {
+    pthread_create(&threads[i], NULL, thread_fn, (void*)i);
+  }
+  
+  for(int i=0; i<THREAD_COUNT; i++) {
+    pthread_join(threads[i], NULL);
+  }
+  
+  return 0;
+}