├── COPYING ├── README.md └── quickbench /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Quickbench 2 | == 3 | 4 | This is a bash script which was designed to run with no specific dependencies 5 | (ie. on a barely booted minimal Linux-based server) and still provides a few 6 | useful metrics to assess the basic performance of a given host. 7 | 8 | Example usage : 9 | 10 | ``` 11 | $ ./quickbench 12 | 13 | Quickbench: 1.0 14 | Kernel : Linux ovhb2 6.1.0-26-cloud-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.112-1 (2024-09-30) x86_64 GNU/Linux 15 | Bash : GNU bash, version 5.2.15(1)-release (x86_64-pc-linux-gnu) 16 | dd : dd (coreutils) 9.1 17 | 18 | [ CPU info ] 19 | Model name: Intel Core Processor (Haswell, no TSX) 20 | BIOS Model name: pc-i440fx-8.2 CPU @ 2.0GHz 21 | Thread(s) per core: 1 22 | Core(s) per socket: 1 23 | Socket(s): 4 24 | 25 | [ CPU loop ] 26 | 1 // jobs : 478140 loop/job/s 27 | 2 // jobs : 476692 loop/job/s 28 | 4 // jobs : 458565 loop/job/s 29 | 30 | [ Memory ] 31 | Total : 14641 MB 32 | Bandwidth: 22.0 GB/s 33 | 34 | [ Storage info ] 35 | Name Bus Size(GB) QDepth Model 36 | sda scsi 100 128 QEMU HARDDISK 37 | 38 | [ Storage bandwidth - 4k blocks ] 39 | Writes ( 1 thread[s]): 50 MB/s 12314 IO/s 0 µs avg. lat. 40 | Writes ( 4 thread[s]): 151 MB/s 36998 IO/s 0 µs avg. lat. 41 | Writes (16 thread[s]): 156 MB/s 38115 IO/s 0 µs avg. lat. 42 | Reads ( 1 thread[s]): 50 MB/s 12313 IO/s 0 µs avg. lat. 43 | Reads ( 4 thread[s]): 136 MB/s 33262 IO/s 0 µs avg. lat. 44 | Reads (16 thread[s]): 156 MB/s 38188 IO/s 0 µs avg. lat. 45 | 46 | [ Storage bandwidth - 1M blocks ] 47 | Writes ( 1 thread[s]): 1450 MB/s 1384 IO/s 0 µs avg. lat. 48 | Writes ( 4 thread[s]): 1483 MB/s 1415 IO/s 2 µs avg. lat. 49 | Writes (16 thread[s]): 1480 MB/s 1611 IO/s 7 µs avg. lat. 50 | Reads ( 1 thread[s]): 1450 MB/s 1383 IO/s 0 µs avg. lat. 51 | Reads ( 4 thread[s]): 5202 MB/s 4961 IO/s 0 µs avg. lat. 52 | Reads (16 thread[s]): 6187 MB/s 5900 IO/s 1 µs avg. lat. 53 | ``` 54 | 55 | Parameters 56 | === 57 | 58 | The script accepts only **1 parameter** which is the **loop delay** : every 59 | loop in the benchmark will not run more than the given figure in seconds. Using 60 | less than 10 might give you unreliable results, use at least 30 seconds for 61 | statistically meaningful results. 62 | 63 | 64 | Header/info 65 | === 66 | 67 | Some measures are not absolute nor calibrated (mostly: the CPU loop), thus if 68 | you want to compare some host, you have to make sure those figures are the same 69 | (**Quickbench version**, **kernel version**, **bash version** and **dd version**). 70 | 71 | 72 | CPU info 73 | === 74 | 75 | This block tries to sum up as much as possible the CPU configuration. The 76 | **Model name** is usually from the CPUID instruction, but also most of the time 77 | edited by hypervisors. The **BIOS Model name*ù might be complementary and often 78 | helps to identify the underlying architecture (which cloud, which generation, 79 | ...). 80 | 81 | CPUs are hierarchically considered as : 82 | * **Sockets** : actually means a physical package (only populated 'sockets' are reported) 83 | * **Cores** : this is a whole independent CPU unit, often there are many of these within a socket 84 | * **Threads** : there are core sub-units, not full cores, and allow some limited form of instruction parellelism within a core 85 | 86 | 87 | CPU loop 88 | === 89 | 90 | This is a busy-loop. Obviously it only exercices a few CPU instructions, but it 91 | still helps to compare them (if there's a large difference, don't 92 | over-interpret +/-5% results). 93 | 94 | You should observe that the loop rate is the same as long as you don't run more 95 | jobs than you have cores. This is useful to debunk cloud coperators which 96 | sell you 'cores' which are actually 'threads' : most of the time two threads 97 | won't manage to run two loops at nominal speed. 98 | 99 | 100 | Memory info 101 | === 102 | 103 | The **Total** reported is what Linux could identy as allocatable memory 104 | (`/proc/meminfo`'s `MemTotal`). It will never be the real/VM memory, since is 105 | necessarily deduced the kernel's executable own footprint and a few hardware 106 | quircks (like DMA windows, video memory, etc). It should still be within 107 | 100-200 MB of what's installed in your host. 108 | 109 | The **Bandwidth** is a simple test asking the CPU to move a block of memory 110 | around. Right now it might only hit the L1 cache and reflect its performance, 111 | it's thus rather a "L1/L2 cache memory bandwidth test". 112 | 113 | 114 | Storage info 115 | === 116 | 117 | Interesting block devices are listed here, with some informations about them if 118 | they are found. Quickbench will not benchmark all of them, see below. 119 | 120 | 121 | Storage benchmark 122 | === 123 | 124 | **This is not a thorough benchmark**, nothing beats 125 | [Fio](https://github.com/axboe/fio) but this one is quite involved to run and 126 | to interpret its results. But it's still possible to have a pretty good 127 | approximation of an IO benchmark with the venerable **dd** (along with some of 128 | its more modern features/flags). 129 | 130 | The benchmark runs **on the filesystem of your current working directory**. If 131 | you want to benchmark another device, you need to have a filesystem mounted on 132 | it, and change your current working directory to this mount point. 133 | 134 | The first part generates small IOs (**4k blocks**), and you should expect this 135 | part to be IOPS-bound. This should give you an idea of how much IOs can be 136 | handled by the backing device. 137 | 138 | The second part generates large IOs (**1M blocks**), and you should expect this 139 | part to be bandwidth-limited - since a single IO moves so much bytes. You 140 | should see here the maximum transfer rates of your backing device. 141 | 142 | Every line of the benchmark runs the same dd transfer loop, but with that many 143 | loops in parallel. Most modern storages (SSDs, NVMes, network-distributed-based 144 | like Ceph, etc) exhibit their best performance when sollicited with many jobs 145 | in parallel. 146 | 147 | Note that the **latency** is the **IO submission latency** which is not really 148 | relevant. The **IO completion latency** would be much more interesting but 149 | right now Quickbench cannot measure it (patch welcome). 150 | 151 | -------------------------------------------------------------------------------- /quickbench: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # quickbench - Quick Linux-based server benchmark 4 | # Copyright (C) 2025 Bearstech - https://bearstech.com/ 5 | # 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, either version 3 of the License, or 9 | # (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | # GNU General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | 19 | THIS_VERSION=1.0 20 | 21 | shopt -s extglob 22 | 23 | loop_time=${1:-30} # Should be at least 30(s) to be statistically meaningful 24 | 25 | 26 | # Plain busy-loop, outputs loop/s 27 | cpu_loop() { 28 | trap ':' SIGINT 29 | (trap "echo \$((n/$loop_time))" EXIT; n=0; while [[ 1 ]]; do let n++; done) & 30 | sleep "$loop_time" 31 | kill $! 32 | } 33 | 34 | io_stat() { 35 | dev="$1" 36 | # See https://www.kernel.org/doc/Documentation/block/stat.txt 37 | _time=${EPOCHREALTIME/./} # In micro-seconds 38 | read -r _rio _rmrg _rsct _rtck _wio _wmrg _wsct _wtck _cur _run _qud _dio _dmrg _dsct _dtck < "/sys/block/$dev/stat" 39 | } 40 | 41 | io_bench() { 42 | title="$1"; shift 43 | jobs="$1"; shift 44 | # Next args are the benchmark'ed IO command 45 | 46 | io_stat "$fsdev" 47 | _t0=$_time 48 | _io0=$((_rio+_wio)) 49 | _sct0=$((_rsct+_wsct)) 50 | _q0=$_qud 51 | 52 | # Run that many IO jobs in //, at most $loop_tim per job, make them interruptible 53 | for ((i=0; i<$jobs; i++)) { 54 | (trap ':' SIGINT; 55 | "$@" & 56 | sleep $loop_time; 57 | kill $! 2>/dev/null) & 58 | sleep 1 # new jobs are started every second 59 | } 60 | wait 61 | 62 | io_stat "$fsdev" 63 | _t=$((_time - _t0)) 64 | _io=$((_rio+_wio - _io0)) 65 | _sct=$((_rsct+_wsct - _sct0)) 66 | _q=$((_qud - _q0)) 67 | 68 | io=$((10**6 * _io / _t)) # From /us to /s 69 | lat=$((_q / _io)) 70 | bw=$((10**6 * _sct / 1953 / _t)) # From /us to /s and 512-bytes sectors to MB (not MiB) 71 | printf "%-6s (%2d thread[s]): %6d MB/s %6d IO/s %6d µs avg. lat.\n" "$title" "$jobs" "$bw" "$io" "$lat" 72 | } 73 | 74 | bash=$(bash --version) 75 | dd=$(dd --version) 76 | echo "Quickbench: $THIS_VERSION" 77 | echo "Kernel : $(uname -a)" 78 | echo "Bash : ${bash/$'\n'*/}" 79 | echo "dd : ${dd/$'\n'*/}" 80 | echo 81 | 82 | echo "[ CPU info ]" 83 | lscpu |grep -E 'Model name|Thread|Core|Socket' 84 | 85 | echo 86 | echo "[ CPU loop ]" 87 | ncpu=$(grep -c ^processor /proc/cpuinfo) 88 | for ((j=1; j<=ncpu; j+=j)) { 89 | values=$(for ((i=0; i>10)) MB" 98 | membw=$(trap ':' INT; dd if=/dev/zero of=/dev/null bs=1M 2>&1 & sleep $loop_time; kill -USR1 $!; sleep .5; kill $!) 99 | membw="${membw##*, }" 100 | echo "Bandwidth: $membw" 101 | 102 | echo 103 | echo "[ Storage info ]" 104 | echo "Name Bus Size(GB) QDepth Model" 105 | for d in /sys/block/*/device; do 106 | d="${d%/device}" 107 | name="${d##*/}" 108 | driver=$(readlink $d/device/subsystem); driver="${driver##*/}" 109 | size=$(cat $d/size) 110 | depth=$(cat $d/device/queue_depth 2>/dev/null || echo '?') 111 | model=$(cat $d/device/model 2>/dev/null || echo '?') 112 | printf "%-8s %-6s %7d %6s %s\n" "$name" "$driver" "$((size>>21))" "$depth" "$model" 113 | done 114 | 115 | # We benchmark IOs through the fs we're sitting on, figure out which device it is. 116 | fsdev="$(readlink $(findmnt -cfn -o SOURCE -T .))" # thanks @BlackLotus 117 | fsdev="${fsdev##*/}" 118 | if [ -z "$fsdev" ]; then 119 | echo "Could not figure out the backing block device for $(pwd), sorry" <&2 120 | exit 1 121 | fi 122 | if [[ "$fsdev" =~ ^dm- ]]; then 123 | echo -e "\n[ Storage device stack ]" 124 | lsblk -o NAME,SIZE,TYPE,MOUNTPOINT -s "/dev/$fsdev" 125 | fi 126 | 127 | # Yes, all IO threads read/write from the same file. This is : 128 | # - useful: it requires way less disk space 129 | # - interesting: by reusing already allocated file blocks, we might avoid 130 | # to benchmark the fs allocation logic 131 | # - working: as long as threads don't read/write on the same block at the same 132 | # time, otherwise cache effect kicks in (hence the sleep-delay to start IO 133 | # threads at a given interal) 134 | trap 'rm -f dummy' EXIT 135 | 136 | for bsize in 4k 1M; do 137 | echo 138 | echo "[ Storage bandwidth - $bsize blocks ]" 139 | for j in 1 4 16; do 140 | io_bench "Writes" "$j" dd bs=$bsize status=none if=/dev/zero of=dummy oflag=direct conv=notrunc,fdatasync 141 | done 142 | for j in 1 4 16; do 143 | io_bench "Reads" "$j" dd bs=$bsize status=none if=dummy of=/dev/null iflag=direct 144 | done 145 | done 146 | --------------------------------------------------------------------------------