Π tidakambirana za zida zotseguka zowunikira purosesa ndi magwiridwe antchito amakumbukiro. Lero tikulankhula za ma benchmark amafayilo ndi makina osungira pa Linux - Interbench, Fio, Hdparm, S ndi Bonnie.
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Fio (imayimira Flexible I/O Tester) imapanga mitsinje ya disk I/O kuti iwunikire momwe fayilo ya Linux ikuyendera. Zomwe zimagwiritsidwanso ntchito zitha kuyendetsedwa pa Windows - muyenera kukhazikitsa mawonekedwe a mzere wolamula . Ndondomeko yokhazikitsira ili mkati .
Wolemba fio - Jens Axbo (), kwa IO subsystem mu Linux ndi utility developer kutsata ntchito za I/O. Iye adalenga, lembani mapulogalamu kuti muyese katundu wina pamanja.
Zomwe zimagwiritsidwa ntchito zidzawerengera IOPS ndi kutulutsa kwadongosolo, komanso kukulolani kuti muyese kuzama kwa mzere wa ntchito za I / O. Zomwe zimagwiritsidwa ntchito zimagwira ntchito ndi mafayilo apadera (.fio extension) momwe zoikidwiratu ndi zoyesa zimatchulidwa. Pali njira zingapo zoyesera, mwachitsanzo, pali kulemba mwachisawawa, kuwerenga ndi kulemba. Pano zomwe zili m'mafayilo amtundu woyamba:
[global]
name=fio-rand-read
filename=fio-rand-read
rw=randread
bs=4K
direct=0
numjobs=1
time_based=1
runtime=900
Masiku ano fio imagwiritsidwa ntchito ndi makampani akuluakulu - amagwira ntchito ndi othandizira , ΠΈ .
Ntchitoyi idalembedwa ndi wopanga mapulogalamu waku Canada Mark Lord kumbuyo mu 2005. Iye akadali ndipo ndi gawo la magawo ambiri otchuka. Cholinga chachikulu cha hdparm ndikukonza magawo agalimoto. Koma chida gwiritsani ntchito zizindikiro zosavuta, monga kuthamanga kwa kuwerenga. Kuti muchite izi, lembani lamulo mu console:
$ sudo hdparm -t /dev/sdbDongosololi limapereka mayankho monga awa:
Timing buffered disk reads: 242 MB in 3.01 seconds = 80.30 MB/secPankhani yokonza ma drive, hdparm imakulolani kuti musinthe kukula kwa kukumbukira kwa cache, kusintha njira yogona ndi makonzedwe a mphamvu, komanso kuchotsa deta mosamala pa SSD. Koma bwanji Akatswiri ochokera ku ArchLinux, kusintha mosasamala kwa magawo a dongosolo kungapangitse deta pa disk kukhala yosafikirika komanso kuwononga galimotoyo. Musanayambe kugwira ntchito ndi hdparm, ndi bwino kuwerenga bukuli - ingolowetsani lamulo la man hdparm mu console.
Awa ndi ma benchmarks owunika momwe machitidwe a I/O amagwirira ntchito. Olemba ntchito anali kuchokera ku gulu la AlgoDev, lomwe limaphatikizapo antchito aku Italiya .
Zizindikiro zonse ndi bash scripts, machitidwe osungira - kupititsa patsogolo, latency, scheduler performance. Mwachitsanzo, benchmark throughput-sync.sh "mabomba" makina osungira ndi zopempha zowerengera kapena zolembera (panthawiyi, zida zotchulidwa kale za fio zimagwiritsidwa ntchito). Pano .
Zolemba zina - comm_startup_lat.sh - zimayesa kuchedwa kwa kuwerenga deta kuchokera pa disk pamene cache "yozizira" (pamene ilibe deta yofunikira). Kodi komanso .
Π€ΠΎΡΠΎ - - Unsplash
Chida chowunika momwe mafayilo amagwirira ntchito, opangidwa mu 1989. Wolemba wake anali injiniya Tim Bray. Ndi thandizo la Bonnie anakonza kugwiritsa ntchito makompyuta omwe akugwira nawo ntchitoyi ku yunivesite ya Waterloo.
Bonnie kuwerenga mwachisawawa ndi kulemba deta ku disk. Pambuyo pake chida chikuwonetsa magawo monga kuchuluka kwa ma byte okonzedwa pa , komanso kuchuluka kwa purosesa ngati peresenti. Benchmark source code ilipo .
Kutengera Bonnie, zida zina zoyesera ma hard drive amamangidwa - (yolembedwa mu C++ m'malo mwa C). Imapereka zida zowonjezera zowerengera. Mwachitsanzo, zcav kuwunika magwiridwe antchito a magawo osiyanasiyana a HDD. Komanso Bonnie++ poyesa ma seva a makalata ndi ma seva a database.
Anakhazikitsa zofunikira (Con Kolivas), wogonetsa munthu waku Australia yemwe amadziwika ndi zomwe amathandizira pakupanga kernel ya Linux ndikugwira ntchito pa "" Interbench imakuthandizani kukonza I/O scheduler ndi makonda amafayilo.
Interbench imatsanzira machitidwe a CPU scheduler pochita ntchito zolumikizana. Ntchito zolumikizanazi zitha kugwira ntchito ndi ma audio ndi makanema, kuyendetsa masewera apakompyuta, kapena kukoka bokosi la zokambirana pamakina opangira.
Nambala yochokera, zitsanzo ndi malingaliro okonzekera chida angapezeke mkati .
Zomwe timalemba m'mabulogu athu:
Source: www.habr.com