Read-ahead getra: 4096
Sector size getss: 512
Block size getbsz: 4096
/sys/block/sda/queue/iosched/fifo_batch: 32
/sys/block/sda/queue/iosched/front_merges: 1
/sys/block/sda/queue/iosched/writes_starved: 2
/sys/block/sda/queue/iosched/write_expire: 5000
/sys/block/sda/queue/iosched/read_expire: 500
/sys/block/sda/queue/scheduler: noop anticipatory [deadline] cfq 
/sys/block/sda/queue/max_sectors_kb: 64
/sys/block/sda/queue/max_hw_sectors_kb: 128
/sys/block/sda/queue/read_ahead_kb: 2048
/sys/block/sda/queue/nr_requests: 3848
/sys/block/sda/sda4/stat: 79168966 1920819251 31286608 3366406224
/sys/block/sda/sda4/size: 922228158
/sys/block/sda/sda4/start: 3960471552
/sys/block/sda/sda4/dev: 8:4

/proc/sys/vm/overcommit_memory: 0
/proc/sys/vm/panic_on_oom: 0
/proc/sys/vm/overcommit_ratio: 50
/proc/sys/vm/page-cluster: 3
/proc/sys/vm/dirty_background_ratio: 5
/proc/sys/vm/dirty_ratio: 10
/proc/sys/vm/dirty_writeback_centisecs: 500
/proc/sys/vm/dirty_expire_centisecs: 3000
/proc/sys/vm/nr_pdflush_threads: 2
/proc/sys/vm/swappiness: 60
/proc/sys/vm/lowmem_reserve_ratio: 256	256
/proc/sys/vm/drop_caches: 0
/proc/sys/vm/min_free_kbytes: 65536
/proc/sys/vm/percpu_pagelist_fraction: 0
/proc/sys/vm/max_map_count: 65536
/proc/sys/vm/laptop_mode: 0
/proc/sys/vm/block_dump: 0
/proc/sys/vm/vfs_cache_pressure: 100
/proc/sys/vm/legacy_va_layout: 0
/proc/sys/vm/zone_reclaim_mode: 0
/proc/sys/vm/min_unmapped_ratio: 1
/proc/sys/vm/min_slab_ratio: 5
/proc/sys/vm/stat_interval: 1
/sys/block/sda/device/queue_depth: 254
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.283 $
		Compiled for 64 bit mode.
		Build: linux-AMD64 

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, 
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy,
	             Erik Habbinga, Kris Strecker, Walter Wong.

	Run began: Fri Dec 14 22:35:10 2007

	Setting no_unlink
	Purge Mode On
	Include fsync in write timing
	SYNC Mode. 
	Record Size 64 KB
	Multi_buffer. Work area 16777216 bytes
	File size set to 4194304 KB
	OPS Mode. Output is in operations per second.
	Command line used: /home/nat/tmp/iozone3_283/src/current/iozone -f iozone.tmp -w -i2 -p -e -o -r64k -m -T -s 4g -O -S 2048 +p96 +u
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 2048 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
                                                            random  random    bkwd  record  stride                                   
              KB  reclen   write rewrite    read    reread    read   write    read rewrite    read   fwrite frewrite   fread  freread
         4194304      64                                       128     202                                                          

iozone test complete.

real	13m54.599s
user	0m1.756s
sys	0m13.633s