btrfs + zstd + disable fsync
Oracle VirtualBox testing on ManjaroLinux via the Phoronix Test Suite.


VBOX HDD: 

	Processor: Intel Core i7-4790K (4 Cores), Motherboard: Oracle VirtualBox v1.2, Chipset: Intel 440FX 82441FX PMC, Memory: 8GB, Disk: 34GB VBOX HDD, Graphics: llvmpipe, Audio: Intel 82801AA AC 97 Audio, Monitor: VBOX monitor, Network: Intel 82540EM

	OS: ManjaroLinux, Kernel: 5.4.114-1-MANJARO (x86_64), Desktop: KDE Plasma 5.21.4, Display Server: X Server 1.20.11, OpenGL: 4.5 Mesa 21.0.3 (LLVM 11.1.0 256 bits), Compiler: GCC 10.2.0, File-System: btrfs, Screen Resolution: 1920x974, System Layer: Oracle VirtualBox


Flexible IO Tester 3.25
Type: Random Read - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
VBOX HDD . 42.51 |=============================================================


Flexible IO Tester 3.25
Type: Random Read - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
VBOX HDD . 3631 |==============================================================


Flexible IO Tester 3.25
Type: Random Write - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
VBOX HDD . 642 |===============================================================


Flexible IO Tester 3.25
Type: Random Write - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
VBOX HDD . 54753 |=============================================================


Flexible IO Tester 3.25
Type: Sequential Read - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
VBOX HDD . 76.0 |==============================================================


Flexible IO Tester 3.25
Type: Sequential Read - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
VBOX HDD . 6487 |==============================================================


Flexible IO Tester 3.25
Type: Sequential Write - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
MB/s > Higher Is Better
VBOX HDD . 542 |===============================================================


Flexible IO Tester 3.25
Type: Sequential Write - Engine: IO_uring - Buffered: Yes - Direct: Yes - Block Size: 16KB - Disk Target: Default Test Directory
IOPS > Higher Is Better
VBOX HDD . 46220 |=============================================================