VPS comparison KVM QEMU testing on CentOS Linux 7 via the Phoronix Test Suite. cloudatcost Developer CloudPRO 3: Processor: 4 x Intel Xeon L5520 @ 2.27GHz (4 Cores), Motherboard: Intel 440BX, Memory: 1 x 2048 MB DRAM, Disk: 42GB Virtual disk OS: CentOS Linux 7, Kernel: 3.10.0-123.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1672x1254, System Layer: VMware Servercow vServer L: Processor: 4 x QEMU Virtual (cpu64-rhel6) @ 2.10GHz (4 Cores), Motherboard: Red Hat KVM, Memory: 1 x 2048 MB RAM, Disk: 19GB OS: CentOS Linux 7, Kernel: 3.10.0-327.4.5.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM QEMU Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second > Higher Is Better cloudatcost Developer CloudPRO 3 . 5557.61 |============== Servercow vServer L .............. 13704.45 |================================== OpenSSL 1.0.1g RSA 4096-bit Performance Signs Per Second > Higher Is Better cloudatcost Developer CloudPRO 3 . 178.70 |===================== Servercow vServer L .............. 301.93 |==================================== BlogBench 1.0 Test: Read Final Score > Higher Is Better cloudatcost Developer CloudPRO 3 . 31836 |===================================== BlogBench 1.0 Test: Write Final Score > Higher Is Better cloudatcost Developer CloudPRO 3 . 75 |======================================== FFmpeg 2.8.1 H.264 HD To NTSC DV Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 55.70 |===================================== Servercow vServer L .............. 52.61 |=================================== Gzip Compression 2GB File Compression Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 298.88 |==================================== Servercow vServer L .............. 23.18 |=== SQLite 3.8.10.2 Test Target: Default Test Directory Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 3943.06 |=================================== Servercow vServer L .............. 10.08 | System BZIP2 Decompression Phoronix Test Suite v6.0.1 Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 24.14 |===================================== Servercow vServer L .............. 19.66 |============================== System XZ Decompression Phoronix Test Suite v6.0.1 Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 10.20 |===================================== Servercow vServer L .............. 7.49 |=========================== Unpacking The Linux Kernel linux-2.6.32.tar.bz2 Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 527.11 |==================================== Servercow vServer L .............. 16.71 |= PHPBench 0.8.1 PHP Benchmark Suite Score > Higher Is Better cloudatcost Developer CloudPRO 3 . 58973 |============================== Servercow vServer L .............. 71998 |===================================== PyBench 2008-08-14 Total For Average Test Times Milliseconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 4532 |====================================== Servercow vServer L .............. 4002 |================================== Mencoder 1.1 AVI To LAVC Seconds < Lower Is Better cloudatcost Developer CloudPRO 3 . 52.23 |===================================== Servercow vServer L .............. 46.35 |================================= GnuPG 1.4.10 1GB File Encryption Seconds < Lower Is Better Servercow vServer L . 12.83 |================================================== IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 2012.92 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 1963.77 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 2079.03 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 1858.31 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 1850.42 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 1834.10 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1152.55 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1126.05 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1115.78 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 945.65 |================================================= IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 966.20 |================================================= IOzone 3.405 Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 909.08 |================================================= IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 2010.99 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 2107.66 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 2088.12 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 4497.85 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 4139.71 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1148.90 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1092.57 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1091.48 |================================================ IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1087.21 |================================================ IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 878.89 |================================================= IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Servercow vServer L . 5030.04 |================================================ IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Servercow vServer L . 1034.91 |================================================