Proxmox Ceoh Processor Compression Bench qemu testing on Debian 9.12 via the Phoronix Test Suite. 4 x Intel Xeon E7 4830: Processor: 4 x Intel Xeon E7 4830 (16 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 2 x 16384 MB RAM QEMU, Disk: 490GB, Graphics: bochsdrmfb, Network: Red Hat Virtio device OS: Debian 9.12, Kernel: 4.9.0-12-amd64 (x86_64), Compiler: GCC 6.3.0 20170516, File-System: ext4, Screen Resolution: 1024x768, System Layer: qemu lzbench 1.8 Test: XZ 0 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 17 |================================================== lzbench 1.8 Test: XZ 0 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 57 |================================================== lzbench 1.8 Test: Zstd 1 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 181 |================================================= lzbench 1.8 Test: Zstd 1 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 456 |================================================= lzbench 1.8 Test: Zstd 8 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 32 |================================================== lzbench 1.8 Test: Zstd 8 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 463 |================================================= lzbench 1.8 Test: Crush 0 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 35 |================================================== lzbench 1.8 Test: Crush 0 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 192 |================================================= lzbench 1.8 Test: Brotli 0 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 195 |================================================= lzbench 1.8 Test: Brotli 0 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 234 |================================================= lzbench 1.8 Test: Brotli 2 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 71 |================================================== lzbench 1.8 Test: Brotli 2 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 288 |================================================= lzbench 1.8 Test: Libdeflate 1 - Process: Compression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 87 |================================================== lzbench 1.8 Test: Libdeflate 1 - Process: Decompression MB/s > Higher Is Better 4 x Intel Xeon E7 4830 . 473 |================================================= 7-Zip Compression 16.02 Compress Speed Test MIPS > Higher Is Better 4 x Intel Xeon E7 4830 . 25835 |=============================================== Parallel BZIP2 Compression 1.1.12 256MB File Compression Seconds < Lower Is Better 4 x Intel Xeon E7 4830 . 7.294 |=============================================== Gzip Compression Linux Source Tree Archiving To .tar.gz Seconds < Lower Is Better 4 x Intel Xeon E7 4830 . 76.17 |=============================================== XZ Compression 5.2.4 Compressing ubuntu-16.04.3-server-i386.img, Compression Level 9 Seconds < Lower Is Better 4 x Intel Xeon E7 4830 . 57.73 |=============================================== Zstd Compression 1.3.4 Compressing ubuntu-16.04.3-server-i386.img, Compression Level 19 Seconds < Lower Is Better 4 x Intel Xeon E7 4830 . 37.08 |=============================================== System XZ Decompression Seconds < Lower Is Better 4 x Intel Xeon E7 4830 . 8.070 |===============================================