Starting test for ext4
+ 1674862971.952749055	 fs=ext4
+ 1674862971.953672868	 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: ecc6737e-e25b-46e6-a84f-589fa2a15dad
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

+ 1674862971.957399399	 '[' 0 -ne 0 ']'
+ 1674862971.958278371	 mkdir -p /mnt/loopsanity
+ 1674862971.959927933	 mount -o loop /mnt/testarea/loopdev_test.img /mnt/loopsanity
+ 1674862971.963619762	 '[' 0 -ne 0 ']'
+ 1674862971.964687168	 ./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 Jan 27 18:42:51 2023

	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  3284700  7745833 11407065 11761022 10803736  8200654  7699937  26578547  10957297

iozone test complete.
+ 1674862972.267841575	 '[' 0 -ne 0 ']'
+ 1674862972.268829232	 umount /mnt/loopsanity
+ 1674862972.273276289	 '[' 0 -ne 0 ']'
+ 1674862972.274176834	 return 0
ext4 PASSed