Table 1. Experimental setup.

Host system
CPU Intel (R) Xeon (R) Gold 5218 CPU 2.30 GHz× 2 (64 Threads)
Memory 128 GB
Virtual Linux system emulated by FEMU
CPU 48 Cores
Memory 100 GB
OS Linux Kernel 5.10.136
Storage 1 GB conventional SSD
4 GB ZNS SSD
FIO configuration
I/O engine Libaio, psync
Direct I/O Enable
I/O Depth 32
Block size 4 K
Workloads Random write (Uniform, Zipf, Pareto, Gaussian dist.)
Sequential write