--- seeker_baryluk.c~	2009-09-15 09:10:05.000000000 +0300
+++ seeker_baryluk.c	2010-08-19 12:33:45.151306691 +0300
@@ -17,11 +17,12 @@
 #include <linux/fs.h>
 
 #define BLOCKSIZE 512
-#define TIMEOUT 30
+#define DEFAULT_TIMEOUT 30
 
 pthread_mutex_t muteks = PTHREAD_MUTEX_INITIALIZER;
 
 int count;
+int TIMEOUT;
 time_t start;
 off64_t maxoffset = 0;
 off64_t minoffset = 249994674176000uLL;
@@ -90,7 +91,9 @@
 
 	while (p->run) {
 		offset = (off64_t) ( (unsigned long long) (p->numbytes * (rand_r(&(p->seed)) / (RAND_MAX + 1.0) )));
-		//printf("%d %llu\n", p->id, (unsigned long long )offset);
+		// do blocksize aligned seeks
+		offset = offset & (~((off64_t) 0) & (~(BLOCKSIZE-1))) ;
+		//printf("%d %x\n", p->id, (unsigned long long )offset);
 		retval = lseek64(p->fd, offset, SEEK_SET);
 		handle("lseek64", retval == (off64_t) -1);
 		retval = read(p->fd, p->buffer, BLOCKSIZE);
@@ -121,22 +124,26 @@
 
 	setvbuf(stdout, NULL, _IONBF, 0);
 
-	printf("Seeker v3.0, 2009-06-17, "
+	printf("Seeker v3.0+Fedora, 2009-06-17, "
 	       "http://www.linuxinsight.com/how_fast_is_your_disk.html\n");
 
-	if (!(argc == 2 || argc == 3)) {
-		printf("Usage: %s device [threads]\n", argv[0]);
+	if (!(argc == 2 || argc == 3 || argc == 4)) {
+		printf("Usage: %s device [threads] [seconds]\n", argv[0]);
 		exit(1);
 	}
 
 	threads = 1;
-	if (argc == 3) {
+	TIMEOUT = DEFAULT_TIMEOUT;
+	if (argc > 2) {
 		threads = atoi(argv[2]);
+		if (argc > 3) {
+			TIMEOUT = atoi(argv[3]);
+		}
 	}
 
 	//pthread_mutex_init(&muteks, NULL); 
 
-	fd = open(argv[1], O_RDONLY | O_LARGEFILE);
+	fd = open(argv[1], O_RDONLY | O_LARGEFILE | O_DIRECT);
 	handle("open", fd < 0);
 
 #ifdef BLKGETSIZE64
@@ -177,7 +184,9 @@
 		p[i].seed = rand()+i;
 		p[i].fd = dup(fd);
 		handle("dup", p[i].fd < 0);
-		p[i].buffer = malloc(sizeof(char)*BLOCKSIZE);
+		p[i].buffer = memalign(512*8, sizeof(char)*BLOCKSIZE);
+		//printf("\n%x\n", (int)(&(p[i].buffer)));
+
 		p[i].numbytes = numbytes;
 		handle("malloc", p[i].buffer == NULL);
 		p[i].run = 1;