Koj tau hais kom qhia cov piv txwv tiag tiag ntawm kev siv peb lub tuam txhab SSD tsav thiab kev xeem tshaj lij. Peb muab koj cov ncauj lus kom ntxaws txog peb cov SSD drives los ntawm peb tus khub Truesystems. Cov kws tshaj lij Truesystems tau sib sau ua tus neeg rau zaub mov tiag tiag thiab ua raws li cov teeb meem tiag tiag uas txhua lub lag luam-chav SSDs ntsib. Cia peb saib seb lawv tuaj li cas!
2019 Kingston cov khoom lag luam
Ua ntej, me ntsis qhuav txoj kev xav. Txhua Kingston SSDs tuaj yeem muab faib ua plaub pawg loj. Qhov kev faib tawm no yog qhov xwm txheej, txij li tib lub tsav tsheb poob rau hauv ob peb tsev neeg ib zaug.
- SATA SSD nyob rau hauv 2,5 ", M.2 thiab mSATA daim ntawv tseem ceeb Kingston UV500 thiab ob lub qauv ntawm drives nrog NVMe interface - Kingston A1000 thiab Kingston KC2000;
- . Cov qauv tib yam li hauv pab pawg dhau los thiab, ntxiv rau, SATA SSD Kingston A400;
- UV500 thiab KC2000;
- . DC500 series tsav, uas tau los ua tus phab ej ntawm qhov kev tshuaj xyuas no. DC500 kab yog muab faib ua DC500R (thawj nyeem ntawv, 0,5 DWPD) thiab DC500M (sib xyaw load, 1,3 DWPD).
Ntawm qhov kev sim, Truesystems muaj Kingston DC500R nrog lub peev xwm ntawm 960 GB thiab Kingston DC500M nrog 1920 GB ntawm lub cim xeeb. Cia peb ua kom peb nco txog lawv cov yam ntxwv:
Kingston DC 500R
- Ntim: 480, 960, 1920, 3840 GB
- Form factor: 2,5 ", qhov siab 7 mm
- Interface: SATA 3.0, 6 Gbit / s
- Kev lees paub kev ua haujlwm (960 GB qauv)
- Sequential access: nyeem - 555 MB / s, sau - 525 MB / s
- Random nkag (4 KB thaiv): nyeem - 98 IOPS, sau - 000 IOPS
- QoS latency (4 KB block, QD = 1, 99,9 feem pua): nyeem - 500 Β΅s, sau - 2 ms
- Emulated sector loj: 512 bytes (logical/physical)
- Cov peev txheej: 0,5 DWPD
- Lub sijhawm lav: 5 xyoos
Kingston DC 500M
- Ntim: 480, 960, 1920, 3840 GB
- Form factor: 2,5 ", qhov siab 7 mm
- Interface: SATA 3.0, 6 Gbit / s
- Kev lees paub kev ua haujlwm (1920 GB qauv)
- Sequential access: nyeem - 555 MB / s, sau - 520 MB / s
- Random nkag (4 KB thaiv): nyeem - 98 IOPS, sau - 000 IOPS
- QoS latency (4 KB block, QD = 1, 99,9 feem pua): nyeem - 500 Β΅s, sau - 2 ms
- Emulated sector loj: 512 bytes (logical/physical)
- Cov peev txheej: 1,3 DWPD
- Lub sijhawm lav: 5 xyoos
Cov kws tshaj lij Truesystems pom tias Kingston drives qhia QoS qhov tseem ceeb ntawm tag nrho cov latency raws li qhov siab tshaj feem pua ββββntawm 99,9% (99,9% ntawm tag nrho cov nqi yuav tsawg dua li cov nqi teev). Qhov no yog qhov taw qhia tseem ceeb heev tshwj xeeb tshaj yog rau cov neeg rau zaub mov drives, txij li lawv txoj haujlwm yuav tsum muaj kev kwv yees, kev ruaj ntseg thiab tsis muaj kev npaj txhij txog freezes. Yog tias koj paub tias QoS qeeb tau teev nyob rau hauv cov lus qhia tsav tsheb, koj tuaj yeem kwv yees nws txoj haujlwm, uas yooj yim heev.
Ntsuas qhov ntsuas
Ob lub drives tau sim nyob rau hauv lub rooj ntev zaum simulating lub server. Nws cov yam ntxwv:
- Intel Xeon Processor E5-2620 V4 (8 cores, 2,1 GHz, HT enabled)
- 32 GB nco
- Supermicro X10SRi-F motherboard (1x socket R3, Intel C612)
- CentOS Linux 7.6.1810
- Txhawm rau tsim cov khoom thauj, FIO version 3.14 tau siv
Thiab ib zaug ntxiv txog qhov twg SSD drives tau sim:
- Kingston DC500R 960 GB (SEDC500R960G)
- Firmware: SCEKJ2.3
- Ntim: 960 bytes
- Kingston DC500M 1920 GB (SEDC500M1920G)
- Firmware: SCEKJ2.3
- ΠΠ±ΡΡΠΌ: 1β920β383β410β176 Π±Π°ΠΉΡ
Test Methodology
Raws li cov txheej txheem nrov Txawm li cas los xij, cov neeg sim tau hloov kho rau nws kom cov khoom txav ze rau kev siv tiag tiag ntawm kev lag luam SSDs hauv 2019. Hauv kev piav qhia ntawm txhua qhov kev xeem, peb yuav nco ntsoov tias qhov hloov pauv li cas thiab vim li cas.
Input/Output Operations Test (IOPS)
Qhov kev ntsuas no ntsuas IOPS rau qhov sib txawv ntawm qhov ntau thiab tsawg (1024 KB, 128 KB, 64 KB, 32 KB, 16 KB, 8 KB, 4 KB, 0,5 KB) thiab random nkag nrog sib txawv nyeem / nyeem ntawv. , 100/0, 95/5, 65/35, 50/50, 35/65, 5/95). Cov kws paub txog Truesystems tau siv cov kev ntsuas hauv qab no: 0 threads nrog qhov sib sib zog nqus ntawm 100. Tib lub sijhawm, 16 KB block (8 bytes) tsis tau khiav txhua, vim nws qhov loj me dhau los ua qhov hnyav hnyav.
Kingston DC500R hauv IOPS xeem
Table data:
Kingston DC500M hauv IOPS xeem
Table data:
Qhov kev xeem IOPS tsis txhais tau tias ncav cuag hom saturation, yog li nws yooj yim heev kom dhau. Ob lub drives ua tau zoo heev, ua raws li lub Hoobkas qhia tshwj xeeb. Cov kev xeem xeem tau ua tau zoo heev hauv kev sau ntawv hauv 4 KB blocks: 70 thiab 88 txhiab IOPS. Qhov no yog qhov zoo, tshwj xeeb tshaj yog rau kev nyeem ntawv Kingston DC500R. Raws li rau kev nyeem ntawv lawv tus kheej, cov SSD tsav no tsis tsuas yog tshaj lawv lub Hoobkas qhov tseem ceeb, tab sis kuj feem ntau mus txog qhov kev ua tau zoo ntawm SATA interface.
Bandwidth Test
Qhov kev xeem no tshuaj xyuas cov kev sib txuas ua ke. Ntawd yog, ob qho tib si SSD tsav tau ua ntu ntu nyeem thiab sau cov haujlwm hauv 1 MB thiab 128 KB blocks. 8 threads nrog ib tug queue qhov tob ntawm 16 ib tug xov.
Kingston DC 500R:
- 128 KB ua ntu zus nyeem: 539,81 MB/s
- 128 KB ua ntu zus sau: 416,16 MB/s
- 1 MB ib ntus nyeem: 539,98 MB/s
- 1 MB ib ntus sau: 425,18 MB/s
Kingston DC 500M:
- 128 KB ua ntu zus nyeem: 539,27 MB/s
- 128 KB ua ntu zus sau: 518,97 MB/s
- 1 MB ib ntus nyeem: 539,44 MB/s
- 1 MB ib ntus sau: 518,48 MB/s
Thiab ntawm no peb kuj pom tias qhov kev nyeem ntawv nrawm ntawm SSD tau nce mus txog qhov kev txwv dhau ntawm SATA 3 interface. Feem ntau, Kingston drives tsis pom muaj teeb meem nrog kev nyeem ntawv txuas ntxiv.
Sequential sau qeeb me ntsis, uas yog tshwj xeeb tshaj yog tshwm sim nyob rau hauv Kingston DC500R, uas belongs rau cov nyeem intensive chav kawm ntawv, uas yog, nws yog tsim los rau intensive kev nyeem ntawv. Yog li ntawd, Kingston DC500R nyob rau hauv qhov no ntawm qhov kev xeem ua qhov tseem ceeb txawm tias qis dua tau teev. Tab sis cov kws paub txog Truesystems ntseeg hais tias rau lub tsav uas tsis yog tsim los rau cov loads tag nrho (nco ntsoov tias DC500R muaj peev txheej ntawm 0,5 DWPD), cov 400-ntxiv MB / s tseem tuaj yeem suav tias yog qhov txiaj ntsig zoo.
Kev ntsuas latency
Raws li peb tau sau tseg lawm, qhov no yog qhov kev sim tseem ceeb tshaj plaws rau kev lag luam drives. Tom qab tag nrho, nws tuaj yeem siv los txiav txim seb muaj teeb meem dab tsi tshwm sim thaum lub sij hawm ntev siv SSD tsav txhua hnub. Tus qauv SNIA PTS xeem ntsuas qhov nruab nrab thiab siab tshaj plaws latency rau ntau qhov ntau thiab tsawg block (8 KB, 4 KB, 0,5 KB) thiab nyeem / sau piv (100/0, 65/35, 0/100) ntawm qhov tsawg kawg kab qhov tob (1 xov nrog QD = 1). Txawm li cas los xij, cov neeg kho ntawm Truesystems tau txiav txim siab hloov kho nws kom tau txais txiaj ntsig ntau dua:
- Tsis suav nrog 0,5 KB;
- Hloov chaw ib leeg-threaded load nrog queues 1 thiab 32, lub load sib txawv ntawm cov xov (1, 2, 4) thiab queue qhov tob (1, 2, 4, 8, 16, 32);
- Hloov ntawm 65/35 piv, 70/30 yog siv raws li nws muaj tseeb dua;
- Tsis tsuas yog qhov nruab nrab thiab qhov siab tshaj plaws yog muab, tab sis kuj feem pua ββββntawm 99%, 99,9%;
- rau qhov xaiv tus nqi ntawm cov xov tooj, graphs ntawm latency (99%, 99,9% thiab nruab nrab tus nqi) yog npaj tawm tsam IOPS rau tag nrho cov blocks thiab nyeem / sau piv.
Cov ntaub ntawv tau kwv yees kwv yees li plaub ntawm 25 rounds ntev 35 vib nas this (5 warm-up + 30-thib ob load) txhua. Rau cov duab, Truesystems editors xaiv ib tug series ntawm qhov tseem ceeb nrog queue qhov tob ntawm 1 txog 32 nrog 1-4 threads. Qhov no tau ua tiav txhawm rau txhawm rau ntsuas qhov ua tau zoo ntawm cov tsav tsheb suav nrog latency, uas yog, qhov ntsuas qhov tseeb tshaj plaws.
Qhov nruab nrab latency metrics:
Daim duab no qhia meej qhov sib txawv ntawm DC500R thiab DC500M. Kingston DC500R yog tsim los rau kev nyeem ntawv hnyav, yog li tus naj npawb ntawm kev sau cov haujlwm xyaum tsis nce nrog kev nce ntxiv, tshuav ntawm 25.
Yog tias koj saib ntawm qhov sib xyaw ua ke (70% sau thiab 30% nyeem), qhov sib txawv ntawm DC500R thiab DC500M kuj tseem ceeb. Yog tias peb nqa cov khoom sib xws rau latency ntawm 400 microseconds, peb tuaj yeem pom tias lub hom phiaj ntawm DC500M muaj peb zaug ntawm kev ua haujlwm. Qhov no kuj yog ntuj heev thiab stems los ntawm cov yam ntxwv ntawm lub drives.
Ib qho kev nthuav dav yog tias DC500M ua tau zoo tshaj DC500R txawm tias 100% nyeem, xa qis latency rau tib tus nqi ntawm IOPS. Qhov txawv me me, tab sis nthuav heev.
99% latency feem pua:
99.9% latency feem pua:
Siv cov duab no, cov kws paub txog Truesystems tau tshawb xyuas qhov kev ntseeg tau ntawm cov yam ntxwv tshaj tawm rau QoS latency. Cov lus qhia tshwj xeeb tau qhia tias 0,5 ms nyeem thiab 2 ms sau rau 4 KB thaiv nrog rau kab qhov tob ntawm 1. Peb txaus siab tshaj tawm tias cov duab no tau lees paub, thiab nrog cov npoo loj. Interestingly, qhov tsawg kawg nkaus nyeem ncua (280-290 ΞΌs rau DC500R thiab 250-260 ΞΌs rau DC500M) ua tiav tsis nrog QD = 1, tab sis nrog 2-4.
Kev sau ntawv latency ntawm QD = 1 yog 50 ΞΌs (xws li qhov qis latency tau txais vim qhov tseeb tias thaum lub sijhawm thauj khoom tsis tshua muaj lub cache tau lees paub tias muaj sijhawm los tso tawm, thiab peb ib txwm pom kev ncua thaum sau ntawv rau lub cache). Daim duab no yog 40 npaug qis dua tus nqi tshaj tawm!
Kev Ntsuam Xyuas Kev Ua Haujlwm Nruam
Lwm qhov kev sim tiag tiag uas tshuaj xyuas kev hloov pauv kev ua haujlwm (IOPS thiab latency) thaum lub sijhawm ua haujlwm ntev. Qhov xwm txheej ua haujlwm yog random kaw hauv 4 KB blocks rau 600 feeb. Lub ntsiab lus ntawm qhov kev sim no yog tias nyob rau hauv xws li ib tug load, SSD tsav nkag mus rau hauv saturation hom, thaum tus maub los yog tsis tu ncua koom nyob rau hauv cov khib nyiab sau los npaj lub cim xeeb blocks dawb rau kev sau ntawv. Ntawd yog, qhov no yog hom kev qaug zog tshaj plaws - raws nraim li cas kev lag luam-chav SSDs pom hauv cov servers tiag tiag.
Raws li cov txiaj ntsig kev xeem, Truesystems tau txais cov ntsuas kev ua tau zoo hauv qab no:
Cov txiaj ntsig tseem ceeb ntawm qhov kev xeem no: ob qho tib si Kingston DC500R thiab Kingston DC500M hauv kev ua haujlwm tiag tiag tshaj lawv tus kheej lub Hoobkas nqi. Thaum cov blocks npaj tau khiav tawm, hom saturation pib, Kingston DC500R tseem nyob ntawm 22 IOPS (es tsis yog 000 IOPS). Kingston DC20M nyob hauv thaj tsam ntawm 000-500, txawm hais tias tus tsav profile hais txog 77 IOPS. Qhov kev sim no kuj qhia meej qhov sib txawv ntawm cov tsav: yog tias tus tsav txoj kev khiav hauj lwm muaj feem ntau ntawm kev sau ntawv, Kingston DC78M hloov mus ua ntau tshaj peb npaug ntau dua (peb kuj nco ntsoov tias DC000M tau pom zoo latency hauv kev nyeem ntawv. ).
Latencies thaum lub sijhawm ua haujlwm tsis tu ncua yog npaj rau hauv cov duab hauv qab no. Qhov nruab nrab, 99%, 99,9% thiab 99,99% feem pua.
Peb pom tias lub latency ntawm ob lub drives nce nyob rau hauv kev faib ua feem rau qhov txo nyob rau hauv kev ua tau zoo, tsis muaj ntse dips los yog inexplicable peaks. Qhov no yog qhov zoo heev, txij li kev kwv yees tau raws nraim qhov xav tau los ntawm kev lag luam drives. Cov kws tshaj lij Truesystems hais txog qhov kev sim tau tshwm sim hauv 8 xov nrog qhov sib sib zog nqus ntawm 16 ib txoj xov, yog li nws tsis yog qhov tseem ceeb ntawm qhov tseem ceeb, tab sis lub zog. Thaum lawv sim DC400, muaj qhov qeeb qeeb hauv qhov kev sim no vim yog kev ua haujlwm ntawm tus maub los, tab sis hauv daim duab no Kingston DC500R thiab Kingston DC500M tsis muaj teeb meem zoo li no.
Load Latency Distribution
Raws li ib qho ntxiv, Truesystems editors khiav Kingston DC500R thiab Kingston DC500M los ntawm kev sim yooj yim No. 13 ntawm SNIA SSS PTS 2.0.1 specification. Kev faib tawm ntawm ncua sij hawm thauj khoom tau kawm nyob rau hauv daim ntawv ntawm tus qauv CBW tshwj xeeb:
Thaiv qhov ntau thiab tsawg:
Load faib thoob plaws qhov ntim cia:
Nyeem / sau piv: 60/40%.
Tom qab kev ruaj ntseg erase thiab preload, testers khiav 10 60-thib ob rounds ntawm lub ntsiab xeem rau ib tug xov tooj ntawm 1-4 thiab ib tug queue qhov tob ntawm 1-32. Raws li cov txiaj ntsig tau, ib qho histogram ntawm kev faib cov txiaj ntsig los ntawm qhov sib npaug sib npaug rau qhov kev ua tau zoo nruab nrab (IOPS) tau tsim. Rau ob lub drives nws tau tiav nrog ib tug xov nrog ib tug queue qhov tob ntawm 4.
Yog li ntawd, cov txiaj ntsig hauv qab no tau txais:
DC500R: 17949 IOPS ntawm 594 Β΅s latency
DC500M: 18880 IOPS ntawm 448 Β΅s.
Latency distributions tau txheeb xyuas nyias rau kev nyeem thiab sau.
xaus
Cov kws kho ntawm Truesystems tau xaus lus tias qhov kev xeem ua tau zoo ntawm Kingston DC500R thiab Kingston DC500M tau txhais tau meej meej tias zoo. Kingston DC500R copes zoo heev nrog kev nyeem ntawv ua haujlwm, thiab tuaj yeem pom zoo ua cov cuab yeej tshaj lij rau cov haujlwm sib xws. Rau cov khoom sib xyaw thiab thaum xav tau ntau lub zog, Truesystems pom zoo rau Kingston DC500M. Cov ntawv tshaj tawm kuj sau cov nqi txaus nyiam rau tag nrho cov qauv kab ntawm Kingston cov neeg ua haujlwm tsav tsheb thiab lees paub tias kev hloov pauv mus rau TLC 3D-NAND tiag tiag pab txo tus nqi yam tsis tau poob zoo. Cov kws tshaj lij Truesystems kuj nyiam cov qib siab ntawm Kingston kev txhawb nqa thiab kev lav tsib xyoos rau DC500 series ntawm cov tsav.
PS Peb qhia koj tias .
Yog xav paub ntxiv txog Kingston Technology cov khoom, thov hu rau .
Tau qhov twg los: www.hab.com