VM Comparison Virtualization Comparison Baremetal (ondemand): Processor: 2 x Intel Xeon E5440 @ 2.83GHz (8 Cores), Motherboard: Dell 0TT740, Chipset: Intel 5000X MCH, Memory: 16384MB, Disk: 1000GB PERC 6/i, Graphics: AMD ATI ES1000 128MB, Network: Broadcom NetXtreme II BCM5708 Gigabit OS: Ubuntu 12.04, Kernel: 3.2.0-37-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1024x768 Baremetal (Performance): Processor: 2 x Intel Xeon E5440 @ 2.83GHz (8 Cores), Motherboard: Dell 0TT740, Chipset: Intel 5000X MCH, Memory: 16384MB, Disk: 1000GB PERC 6/i, Graphics: AMD ATI ES1000 128MB, Network: Broadcom NetXtreme II BCM5708 Gigabit OS: Ubuntu 12.04, Kernel: 3.2.0-37-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1024x768 Xen PV (on Ubuntu 12.04 LTS): Processor: Intel Xeon E5440 @ 2.83GHz (8 Cores), Memory: 14336MB, Disk: 60GB OS: Ubuntu 12.04, Kernel: 3.2.0-37-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, System Layer: Xen 4.1.2 Hypervisor KVM PV, cache=none (on Ubuntu 12.04 LTS): Processor: Intel Core 2 Duo T7700 @ 2.83GHz (8 Cores), Motherboard: Bochs, Chipset: Red Hat Virtio, Memory: 14336MB, Disk: 45GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 12.04, Kernel: 3.2.0-37-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 800x600 KVM PV (on Ubuntu 12.04 LTS): Processor: QEMU Virtual 1.0 @ 2.83GHz (8 Cores), Motherboard: Bochs, Chipset: Red Hat Virtio, Memory: 14336MB, Disk: 45GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 12.04, Kernel: 3.5.0-23-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 800x600, System Layer: QEMU 1.0 LXC (on Ubuntu 12.04 LTS): Processor: 2 x Intel Xeon E5440 @ 2.83GHz (8 Cores), Motherboard: Dell 0TT740, Memory: 16384MB, Disk: 1000GB PERC 6/i, Graphics: 128MB OS: Ubuntu 12.04, Kernel: 3.2.0-37-generic (x86_64), Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1024x768 Cyclictest 0.84 Kernel Latency: POSIX Timer, Interval 10000 ms, 10000 Loops ms Average < Lower Is Better Baremetal (ondemand) ..................... 10 |==== Baremetal (Performance) .................. 8 |==== Xen PV (on Ubuntu 12.04 LTS) ............. 73 |================================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 61 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 58 |========================= SQLite 3.7.3 Test Target: Default Test Directory Seconds < Lower Is Better Baremetal (ondemand) ..................... 10.65 | Baremetal (Performance) .................. 11.52 |= Xen PV (on Ubuntu 12.04 LTS) ............. 15.70 |= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 32.58 |== KVM PV (on Ubuntu 12.04 LTS) ............. 24.80 |= LXC (on Ubuntu 12.04 LTS) ................ 600.43 |============================ Flexible IO Tester 1.57 Test: Intel IOMeter File Server Access Pattern Seconds (Run Time) < Lower Is Better Baremetal (ondemand) ..................... 2571.17 |=========================== Baremetal (Performance) .................. 2592.09 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 2618.00 |=========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 2540.83 |========================== KVM PV (on Ubuntu 12.04 LTS) ............. 698.74 |======= LXC (on Ubuntu 12.04 LTS) ................ 2567.48 |========================== PostgreSQL pgbench 8.4.11 PostgreSQL TPC-B Transactions Per Second TPS > Higher Is Better Baremetal (ondemand) ..................... 2541.71 |=================== Baremetal (Performance) .................. 2596.37 |=================== Xen PV (on Ubuntu 12.04 LTS) ............. 1379.47 |========== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 1389.03 |========== KVM PV (on Ubuntu 12.04 LTS) ............. 1359.17 |========== LXC (on Ubuntu 12.04 LTS) ................ 3634.92 |=========================== Compile Bench 0.6 Test: Compile MB/s > Higher Is Better Baremetal (ondemand) ..................... 353.40 |============================ Baremetal (Performance) .................. 353.87 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 298.77 |======================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 288.82 |======================= KVM PV (on Ubuntu 12.04 LTS) ............. 133.26 |=========== LXC (on Ubuntu 12.04 LTS) ................ 338.46 |=========================== Threaded I/O Tester 0.3.3 Test: Random Read - Size Per Thread: 128 MB - Thread Count: 32 - 4 k Block Size - Total 4 GB MB/s > Higher Is Better Baremetal (ondemand) ..................... 4248.86 |=========================== Baremetal (Performance) .................. 4222.69 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 1628.56 |========== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 3436.15 |====================== KVM PV (on Ubuntu 12.04 LTS) ............. 3628.25 |======================= LXC (on Ubuntu 12.04 LTS) ................ 3560.32 |======================= Timed Linux Kernel Compilation 3.1 Time To Compile Seconds < Lower Is Better Baremetal (ondemand) ..................... 86.43 |============= Baremetal (Performance) .................. 85.25 |============= Xen PV (on Ubuntu 12.04 LTS) ............. 103.98 |================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 182.91 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 185.79 |============================ LXC (on Ubuntu 12.04 LTS) ................ 87.28 |============= FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better Baremetal (ondemand) ..................... 134.38 |============================ Baremetal (Performance) .................. 135.63 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 121.13 |========================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 124.75 |========================== KVM PV (on Ubuntu 12.04 LTS) ............. 128.63 |=========================== LXC (on Ubuntu 12.04 LTS) ................ 62.43 |============= IOzone 3.405 Record Size: 64kB - File Size: 32GB - Disk Test: Read Performance MB/s > Higher Is Better Baremetal (ondemand) ..................... 139.23 |============================ Baremetal (Performance) .................. 138.92 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 120.86 |======================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 133.86 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 65.67 |============= LXC (on Ubuntu 12.04 LTS) ................ 137.37 |============================ Cyclictest 0.84 Kernel Latency: clock_nanosleep TIME_ABSTIME, Interval 500 ms, 100000 Loops ms Average < Lower Is Better Baremetal (ondemand) ..................... 6 |=== Baremetal (Performance) .................. 5 |== Xen PV (on Ubuntu 12.04 LTS) ............. 68 |================================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 53 |========================= KVM PV (on Ubuntu 12.04 LTS) ............. 53 |========================= Cyclictest 0.84 Kernel Latency: POSIX Timer, Interval 500 ms, 100000 Loops ms Average < Lower Is Better Baremetal (ondemand) ..................... 7 |=== Baremetal (Performance) .................. 6 |=== Xen PV (on Ubuntu 12.04 LTS) ............. 71 |================================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 60 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 61 |=========================== Cyclictest 0.84 Kernel Latency: clock_nanosleep TIME_ABSTIME, Interval 10000 ms, 10000 Loops ms Average < Lower Is Better Baremetal (ondemand) ..................... 8 |==== Baremetal (Performance) .................. 7 |=== Xen PV (on Ubuntu 12.04 LTS) ............. 71 |================================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 59 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 59 |=========================== Timed MrBayes Analysis 3.1.2 Primate Phylogeny Analysis (Bayes) Seconds < Lower Is Better Baremetal (ondemand) ..................... 23.67 |================== Baremetal (Performance) .................. 19.83 |=============== Xen PV (on Ubuntu 12.04 LTS) ............. 30.21 |======================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 38.47 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 35.55 |=========================== LXC (on Ubuntu 12.04 LTS) ................ 24.86 |=================== Apache Benchmark 2.4.3 Static Web Page Serving Requests Per Second > Higher Is Better Baremetal (ondemand) ..................... 14486.26 |========================== Baremetal (Performance) .................. 12787.70 |======================= Xen PV (on Ubuntu 12.04 LTS) ............. 9219.40 |================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 10814.30 |=================== KVM PV (on Ubuntu 12.04 LTS) ............. 11346.78 |==================== LXC (on Ubuntu 12.04 LTS) ................ 11201.48 |==================== NGINX Benchmark 1.0.11 Static Web Page Serving Requests Per Second > Higher Is Better Baremetal (ondemand) ..................... 14187.48 |======================== Baremetal (Performance) .................. 14174.44 |======================== Xen PV (on Ubuntu 12.04 LTS) ............. 10100.59 |================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 14508.97 |========================= KVM PV (on Ubuntu 12.04 LTS) ............. 15282.50 |========================== LXC (on Ubuntu 12.04 LTS) ................ 11181.34 |=================== IOzone 3.405 Record Size: 1MB - File Size: 32GB - Disk Test: Read Performance MB/s > Higher Is Better Baremetal (ondemand) ..................... 139.47 |============================ Baremetal (Performance) .................. 137.92 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 120.79 |======================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 132.24 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 92.43 |=================== LXC (on Ubuntu 12.04 LTS) ................ 137.26 |============================ Threaded I/O Tester 0.3.3 Test: Sequential Read - Size Per Thread: 1.024 MB - Thread Count: 32 - 64 k Block Size - Total 32 GB MB/s > Higher Is Better Baremetal (ondemand) ..................... 91.70 |============================= Baremetal (Performance) .................. 91.89 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 75.46 |======================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 85.58 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 64.02 |==================== LXC (on Ubuntu 12.04 LTS) ................ 90.97 |============================= RAMspeed SMP 3.5.0 Type: Triad - Benchmark: Integer MB/s > Higher Is Better Baremetal (ondemand) ..................... 5157.28 |=========================== Baremetal (Performance) .................. 5156.48 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 3594.22 |=================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 4566.42 |======================== KVM PV (on Ubuntu 12.04 LTS) ............. 5033.52 |========================== LXC (on Ubuntu 12.04 LTS) ................ 5149.90 |=========================== RAMspeed SMP 3.5.0 Type: Triad - Benchmark: Floating Point MB/s > Higher Is Better Baremetal (ondemand) ..................... 5317.75 |=========================== Baremetal (Performance) .................. 5321.30 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 3811.91 |=================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 5185.52 |========================== KVM PV (on Ubuntu 12.04 LTS) ............. 5185.25 |========================== LXC (on Ubuntu 12.04 LTS) ................ 5312.11 |=========================== PostMark 1.51 NetApp Disk Transaction Performance TPS > Higher Is Better Baremetal (ondemand) ..................... 2395 |============================== Baremetal (Performance) .................. 2403 |============================== Xen PV (on Ubuntu 12.04 LTS) ............. 1724 |====================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 1984 |========================= KVM PV (on Ubuntu 12.04 LTS) ............. 1942 |======================== LXC (on Ubuntu 12.04 LTS) ................ 2245 |============================ FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better Baremetal (ondemand) ..................... 945.67 |============================ Baremetal (Performance) .................. 928.23 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 744.10 |====================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 953.93 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 962.00 |============================ LXC (on Ubuntu 12.04 LTS) ................ 930.87 |=========================== Gzip Compression 2GB File Compression Seconds < Lower Is Better Baremetal (ondemand) ..................... 15.90 |========================= Baremetal (Performance) .................. 15.77 |========================= Xen PV (on Ubuntu 12.04 LTS) ............. 18.25 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 17.64 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 17.90 |============================ LXC (on Ubuntu 12.04 LTS) ................ 16.07 |========================== IOzone 3.405 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Baremetal (ondemand) ..................... 128.03 |============================ Baremetal (Performance) .................. 128.30 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 117.75 |========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 121.94 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 111.60 |======================== LXC (on Ubuntu 12.04 LTS) ................ 126.75 |============================ Parallel BZIP2 Compression 1.1.6 256MB File Compression Seconds < Lower Is Better Baremetal (ondemand) ..................... 6.69 |========================== Baremetal (Performance) .................. 6.71 |========================== Xen PV (on Ubuntu 12.04 LTS) ............. 7.19 |============================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 7.34 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 7.68 |============================== LXC (on Ubuntu 12.04 LTS) ................ 6.71 |========================== IOzone 3.405 Record Size: 64kB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Baremetal (ondemand) ..................... 128.53 |============================ Baremetal (Performance) .................. 128.70 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 118.08 |========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 122.25 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 120.00 |========================== LXC (on Ubuntu 12.04 LTS) ................ 124.87 |=========================== Threaded I/O Tester 0.3.3 Test: Sequential Write - Size Per Thread: 128 MB - Thread Count: 32 - 4 k Block Size - Total 4 GB MB/s > Higher Is Better Baremetal (ondemand) ..................... 126.83 |============================ Baremetal (Performance) .................. 125.90 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 116.49 |========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 121.12 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 120.50 |=========================== LXC (on Ubuntu 12.04 LTS) ................ 124.11 |=========================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 64 MB - Thread Count: 16 - 4 k Block Size - Total 1 GB MB/s > Higher Is Better Baremetal (ondemand) ..................... 7.27 |============================== Baremetal (Performance) .................. 7.33 |============================== Xen PV (on Ubuntu 12.04 LTS) ............. 6.96 |============================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 7.00 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 6.78 |============================ LXC (on Ubuntu 12.04 LTS) ................ 7.13 |============================= BlogBench 1.0 Test: Read Final Score > Higher Is Better Baremetal (ondemand) ..................... 344940 |============================ Baremetal (Performance) .................. 345025 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 326710 |=========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 321802 |========================== KVM PV (on Ubuntu 12.04 LTS) ............. 322967 |========================== LXC (on Ubuntu 12.04 LTS) ................ 332072 |=========================== John The Ripper 1.7.9-jumbo-7 Password Hasing: Blowfish Real C/S > Higher Is Better Baremetal (ondemand) ..................... 6219 |============================== Baremetal (Performance) .................. 6240 |============================== Xen PV (on Ubuntu 12.04 LTS) ............. 6064 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 5926 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 6144 |============================== LXC (on Ubuntu 12.04 LTS) ................ 6240 |============================== PyBench 2008-08-14 Python Benchmark Suite Milliseconds < Lower Is Better Baremetal (ondemand) ..................... 2956 |============================= Baremetal (Performance) .................. 2938 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 2973 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 2976 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 3038 |============================== LXC (on Ubuntu 12.04 LTS) ................ 2960 |============================= GnuPG 1.4.10 1GB File Encryption Seconds < Lower Is Better Baremetal (ondemand) ..................... 12.20 |============================ Baremetal (Performance) .................. 12.21 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 12.56 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 12.30 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 12.46 |============================= LXC (on Ubuntu 12.04 LTS) ................ 12.19 |============================ PHPBench 0.8.1 PHP Benchmark Suite Score > Higher Is Better Baremetal (ondemand) ..................... 60426 |============================= Baremetal (Performance) .................. 60369 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 58729 |============================ KVM PV, cache=none (on Ubuntu 12.04 LTS) . 59552 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 58861 |============================ LXC (on Ubuntu 12.04 LTS) ................ 59460 |============================= LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better Baremetal (ondemand) ..................... 23.37 |============================ Baremetal (Performance) .................. 23.35 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 23.99 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 23.59 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 23.60 |============================= LXC (on Ubuntu 12.04 LTS) ................ 23.38 |============================ C-Ray 1.1 Raytracing, 1600x1200, 16 Threads, 8xAA Seconds < Lower Is Better Baremetal (ondemand) ..................... 37.33 |============================ Baremetal (Performance) .................. 37.26 |============================ Xen PV (on Ubuntu 12.04 LTS) ............. 38.28 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 37.59 |============================ KVM PV (on Ubuntu 12.04 LTS) ............. 37.58 |============================ LXC (on Ubuntu 12.04 LTS) ................ 37.31 |============================ Mencoder 1.1 AVI To LAVC Seconds < Lower Is Better Baremetal (ondemand) ..................... 37.31 |============================= Baremetal (Performance) .................. 37.37 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 37.83 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 37.85 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 37.82 |============================= LXC (on Ubuntu 12.04 LTS) ................ 37.41 |============================= FFTE 5.0 Test: N=64, 1D Complex FFT Routine MFLOPS > Higher Is Better Baremetal (ondemand) ..................... 3614.78 |=========================== Baremetal (Performance) .................. 3603.48 |=========================== Xen PV (on Ubuntu 12.04 LTS) ............. 3573.96 |=========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 3568.13 |=========================== KVM PV (on Ubuntu 12.04 LTS) ............. 3593.49 |=========================== LXC (on Ubuntu 12.04 LTS) ................ 3576.88 |=========================== FLAC Audio Encoding 1.2.1 WAV To FLAC Seconds < Lower Is Better Baremetal (ondemand) ..................... 10.30 |============================= Baremetal (Performance) .................. 10.29 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 10.36 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 10.36 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 10.35 |============================= LXC (on Ubuntu 12.04 LTS) ................ 10.25 |============================= OpenSSL 1.0.1c RSA 4096-bit Performance Signs Per Second > Higher Is Better Baremetal (ondemand) ..................... 61.70 |============================= Baremetal (Performance) .................. 61.50 |============================= Xen PV (on Ubuntu 12.04 LTS) ............. 61.10 |============================= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 61.37 |============================= KVM PV (on Ubuntu 12.04 LTS) ............. 61.13 |============================= LXC (on Ubuntu 12.04 LTS) ................ 61.70 |============================= CacheBench Test: Read / Modify / Write MB/s > Higher Is Better Baremetal (ondemand) ..................... 14219.27 |========================== Baremetal (Performance) .................. 14225.03 |========================== Xen PV (on Ubuntu 12.04 LTS) ............. 14098.96 |========================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 14159.84 |========================== KVM PV (on Ubuntu 12.04 LTS) ............. 14147.34 |========================== LXC (on Ubuntu 12.04 LTS) ................ 14218.59 |========================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 2 MB - Thread Count: 32 - 4 k Block Size - Total 64 MB MB/s > Higher Is Better Baremetal (ondemand) ..................... 853.29 |========================== Baremetal (Performance) .................. 827.64 |========================= Xen PV (on Ubuntu 12.04 LTS) ............. 647.35 |==================== KVM PV, cache=none (on Ubuntu 12.04 LTS) . 498.15 |=============== KVM PV (on Ubuntu 12.04 LTS) ............. 138.29 |==== LXC (on Ubuntu 12.04 LTS) ................ 915.80 |============================ hdparm Timed Disk Reads Disk To Read: /dev/sda MB/s > Higher Is Better Baremetal (ondemand) ..................... 128.83 |========== Baremetal (Performance) .................. 128.85 |========== Xen PV (on Ubuntu 12.04 LTS) ............. 121.76 |========= KVM PV, cache=none (on Ubuntu 12.04 LTS) . 116.53 |========= KVM PV (on Ubuntu 12.04 LTS) ............. 378.66 |============================ LXC (on Ubuntu 12.04 LTS) ................ 133.17 |==========