{"id":15685,"date":"2024-07-01T13:23:00","date_gmt":"2024-07-01T06:23:00","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=777"},"modified":"2025-06-16T16:20:15","modified_gmt":"2025-06-16T09:20:15","slug":"iops-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/iops-la-gi\/","title":{"rendered":"IOPS l\u00e0 g\u00ec? Latency l\u00e0 g\u00ec? L\u1ef1a ch\u1ecdn l\u01b0u tr\u1eef th\u00f4ng minh cho m\u1ecdi nhu c\u1ea7u"},"content":{"rendered":"\n

IOPS l\u00e0 g\u00ec? Latency l\u00e0 g\u00ec? N\u1ebfu b\u1ea1n \u0111ang mu\u1ed1n t\u00ecm hi\u1ec3u v\u00e0 t\u00ednh xem \u1ed5 \u0111\u0129a ho\u1eb7c Cloud Server c\u00f3 m\u1ea1nh hay kh\u00f4ng, TinoHost s\u1ebd gi\u1ea3i \u0111\u00e1p cho b\u1ea1n ngay trong b\u00e0i vi\u1ebft n\u00e0y! Ch\u00fang ta c\u00f9ng nhau t\u00ecm hi\u1ec3u ngay b\u1ea1n nh\u00e9!<\/strong><\/p>\n\n\n\n

Gi\u1edbi thi\u1ec7u \u0111\u00f4i n\u00e9t v\u1ec1 IOPS v\u00e0 Latency<\/strong><\/h2>\n\n\n\n

IOPS l\u00e0 g\u00ec?<\/strong><\/h3>\n\n\n\n

IOPS (Input\/Output per Second<\/strong>) l\u00e0 \u0111\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng cho bi\u1ebft s\u1ed1 l\u01b0\u1ee3ng t\u00e1c v\u1ee5 Write ho\u1eb7c Read \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh trong 1 gi\u00e2y c\u1ee7a \u1ed5 c\u1ee9ng.<\/p>\n\n\n

\n
\"iops-la-so-thao-tac-doc-ghi-trong-mot-giay-cua-o-cung\"
IOPS l\u00e0 s\u1ed1 thao t\u00e1c \u0111\u1ecdc\/ghi trong m\u1ed9t gi\u00e2y c\u1ee7a \u1ed5 c\u1ee9ng<\/figcaption><\/figure>\n<\/div>\n\n\n

Hi\u1ec3u \u0111\u01a1n gi\u1ea3n, IOPS l\u00e0 s\u1ed1 thao t\u00e1c \u0111\u1ecdc ghi trong m\u1ed9t gi\u00e2y c\u1ee7a \u1ed5 c\u1ee9ng. <\/p>\n\n\n\n

V\u00ed d\u1ee5: 4k \u0111\u01b0\u1ee3c 50000 IOPS ngh\u0129a l\u00e0 t\u1ed1c \u0111\u1ed9 read\/write = 50000*4k=200000K\/s~ 200MB\/s<\/p>\n\n\n\n

Tham s\u1ed1 n\u00e0y th\u1ec3 hi\u1ec7n: SSD n\u00e0y sao ch\u00e9p \u0111\u01b0\u1ee3c 200 MB\/s c\u00e1c file nh\u1ecf nh\u01b0 4k trong th\u1eddi gian 1 gi\u00e2y.<\/p>\n\n\n\n

IOPS th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef nh\u01b0 HDD<\/a>, SSD<\/a> ho\u1eb7c SAN. M\u1ed9t \u1ed5 SAS (m\u1ed9t d\u1ea1ng c\u1ee7a HDD) 15.000rpm trung b\u00ecnh kho\u1ea3ng 200 IOPS trong khi \u1ed5 SSD c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1eeb v\u00e0i ngh\u00ecn IOPS cho t\u1edbi v\u00e0i tri\u1ec7u IOPS (nh\u1edd c\u1ea5u tr\u00fac chip nh\u1edb truy c\u1eadp ng\u1eabu nhi\u00ean c\u1ee7a \u1ed5 SSD).<\/p>\n\n\n\n

Tham s\u1ed1 IOPS \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb th\u00f4ng b\u00e1o c\u00f4ng khai v\u00e0 kh\u00f4ng li\u00ean quan g\u00ec \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng \u0111o l\u01b0\u1eddng hi\u1ec7u n\u0103ng c\u1ea3. C\u00f3 c\u00e1c \u1ee9ng d\u1ee5ng \u0111o l\u01b0\u1eddng kh\u00e1c nhau nh\u01b0 IOmeter, DiskSpd…<\/p>\n\n\n\n

T\u00f9y theo t\u00ednh ch\u1ea5t ri\u00eang m\u00e0 c\u00e1c System Admin s\u1ebd ch\u1ecdn m\u1ed9t \u1ee9ng d\u1ee5ng ph\u00f9 h\u1ee3p. <\/p>\n\n\n\n

\u00dd ngh\u0129a c\u1ee7a IOPS \u0111\u1ed1i v\u1edbi Cloud Server<\/strong><\/h3>\n\n\n\n

Tham s\u1ed1 IOPS t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd<\/strong><\/h4>\n\n\n\n

N\u1ebfu tham s\u1ed1 IOPS cao th\u00ec t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd s\u1ebd c\u00e0ng nhanh, d\u1eabn \u0111\u1ebfn s\u1ed1 t\u00e1c v\u1ee5 \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u1ebd nhi\u1ec1u h\u01a1n. Do \u0111\u00f3, hi\u1ec7u n\u0103ng c\u1ee7a \u1ee9ng d\u1ee5ng tr\u00ean Cloud Server<\/a> s\u1ebd cao l\u00ean theo. <\/p>\n\n\n\n

Tuy nhi\u00ean, n\u1ebfu IOPS qu\u00e1 cao, ch\u1ea1m m\u1ee9c gi\u1edbi h\u1ea1n v\u1eadt l\u00fd, t\u00ecnh tr\u1ea1ng th\u1eaft c\u1ed5 chai s\u1ebd x\u1ea3y ra. B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung: Khi IOPS qu\u00e1 cao, Latency cao theo v\u00e0 s\u1ebd gi\u1ea3m throughput (t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u qua m\u1ea1ng).<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi IOPS, th\u00f4ng tin quan tr\u1ecdng nh\u1ea5t m\u00e0 b\u1ea1n c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn l\u00e0 t\u1ec9 l\u1ec7 Read v\u00e0 Write (th\u00f4ng th\u01b0\u1eddng t\u1ef7 l\u1ec7 n\u00e0y l\u00e0 70% (Read) v\u00e0 30 (Write) – c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c).<\/p>\n\n\n

\n
\"iops-co-y-nghia-quan-trong-doi-voi-cloud-server\"
IOPS c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng \u0111\u1ed1i v\u1edbi Cloud Server<\/figcaption><\/figure>\n<\/div>\n\n\n

\u0110\u1ecbnh v\u1ecb th\u1ee9 h\u1ea1ng c\u1ee7a website tr\u00ean th\u1ecb tr\u01b0\u1eddng<\/strong><\/h4>\n\n\n\n

Google \u0111\u00e3 tuy\u00ean b\u1ed1 r\u1eb1ng t\u1ed1c \u0111\u1ed9 t\u1ea3i trang l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u1ee9 h\u1ea1ng c\u1ee7a website, do \u0111\u00f3, c\u00e1c trang web nhanh h\u01a1n s\u1ebd c\u00f3 th\u1ee9 h\u1ea1ng t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

C\u00e1c website s\u1edf h\u1eefu t\u1ed1c \u0111\u1ed9 t\u1ea3i nhanh h\u01a1n c\u00f3 xu h\u01b0\u1edbng b\u00e1n h\u00e0ng nhi\u1ec1u h\u01a1n v\u00ec ng\u01b0\u1eddi d\u00f9ng th\u00edch tr\u1ea3i nghi\u1ec7m t\u1ed1c \u0111\u1ed9 t\u1ea3i trang nhanh ch\u00f3ng.<\/p>\n\n\n\n

C\u00e1ch t\u00ednh IOPS v\u00e0 s\u1ed1 l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng<\/strong><\/h3>\n\n\n\n

C\u00f4ng th\u1ee9c:<\/p>\n\n\n\n