Starting test for ext4
+ 1664583046.140098393	 fs=ext4
+ 1664583046.147561818	 mkfs.ext4 -F /mnt/testarea/loopdev_test.img
mke2fs 1.46.5 (30-Dec-2021)
Discarding device blocks:      0/131072             done                            
Creating filesystem with 131072 4k blocks and 32768 inodes
Filesystem UUID: 89764008-e72e-46c9-9ea7-ba2f8b2f3d22
Superblock backups stored on blocks: 
	32768, 98304

Allocating group tables: 0/4   done                            
Writing inode tables: 0/4   done                            
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: 0/4   done

+ 1664583046.178356961	 '[' 0 -ne 0 ']'
+ 1664583046.185970780	 mkdir -p /mnt/loopsanity
+ 1664583046.197916555	 mount -o loop /mnt/testarea/loopdev_test.img /mnt/loopsanity
+ 1664583046.280061770	 '[' 0 -ne 0 ']'
+ 1664583046.287497260	 ./iozone -f /mnt/loopsanity/testfile -B -s 32535 -m
	Iozone: Performance Test of File I/O
	        Version $Revision: 3.489 $
		Compiled for 64 bit mode.
		Build: linux 

	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, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
	             Vangel Bojaxhi, Ben England, Vikentsi Lapa,
	             Alexey Skidanov, Sudhir Kumar.

	Run began: Fri Sep 30 20:10:46 2022

	Using mmap files
	File size set to 32535 kB
	Multi_buffer. Work area 16777216 bytes
	Command line used: ./iozone -f /mnt/loopsanity/testfile -B -s 32535 -m
	Output is in kBytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 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                                    
           32535       4   216429   571979  1357583  1301165  1409411   543949   707863   7792279   1400615

iozone test complete.
+ 1664583047.481843775	 '[' 0 -ne 0 ']'
+ 1664583047.488145401	 umount /mnt/loopsanity
+ 1664583047.511833053	 '[' 0 -ne 0 ']'
+ 1664583047.518460592	 return 0
ext4 PASSed