{"id":477989,"date":"2023-08-09T09:25:28","date_gmt":"2023-08-09T09:25:28","guid":{"rendered":""},"modified":"2023-09-05T11:15:50","modified_gmt":"2023-09-05T11:15:50","slug":"memory-cache","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/memory-cache\/","title":{"rendered":"B\u1ed9 nh\u1edb \u0111\u1ec7m"},"content":{"rendered":"<p>B\u1ed9 nh\u1edb \u0111\u1ec7m, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi \u0111\u01a1n gi\u1ea3n l\u00e0 b\u1ed9 \u0111\u1ec7m, l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh v\u00e0 m\u00e1y ch\u1ee7 proxy hi\u1ec7n \u0111\u1ea1i. \u0110\u00e2y l\u00e0 c\u01a1 ch\u1ebf l\u01b0u tr\u1eef d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, l\u01b0u tr\u1eef t\u1ea1m th\u1eddi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean, gi\u1ea3m nhu c\u1ea7u t\u00ecm n\u1ea1p d\u1eef li\u1ec7u \u0111\u00f3 nhi\u1ec1u l\u1ea7n t\u1eeb ngu\u1ed3n ban \u0111\u1ea7u. B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng web, trang web v\u00e0 m\u00e1y ch\u1ee7 proxy b\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u th\u1eddi gian ph\u1ea3n h\u1ed3i v\u00e0 gi\u1ea3m t\u1ea3i cho c\u00e1c m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3.<\/p>\n<h2>L\u1ecbch s\u1eed v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a Memory Cache v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n<p>Kh\u00e1i ni\u1ec7m v\u1ec1 b\u1ed9 nh\u1edb \u0111\u1ec7m c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a m\u00e1y t\u00ednh. V\u00e0o nh\u1eefng n\u0103m 1960, m\u00e1y t\u00ednh s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb l\u00f5i v\u00e0 m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng m\u1ed9t k\u1ef9 thu\u1eadt g\u1ecdi l\u00e0 \u201c\u0111\u1ec7m\u201d, m\u1ed9t d\u1ea1ng c\u01a1 b\u1ea3n c\u1ee7a b\u1ed9 nh\u1edb \u0111\u1ec7m. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn thu\u1eadt ng\u1eef \u201cb\u1ed9 nh\u1edb \u0111\u1ec7m\u201d trong b\u1ed1i c\u1ea3nh b\u1ed9 nh\u1edb m\u00e1y t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong m\u1ed9t b\u00e0i b\u00e1o c\u00f3 t\u1ef1a \u0111\u1ec1 \u201cK\u00fd \u1ee9c b\u1ed9 nh\u1edb \u0111\u1ec7m\u201d c\u1ee7a MD Hill v\u00e0 AJ Smith, xu\u1ea5t b\u1ea3n tr\u00ean T\u1ea1p ch\u00ed M\u00e1y t\u00ednh IEEE n\u0103m 1980. B\u00e0i b\u00e1o nh\u1ea5n m\u1ea1nh nh\u1eefng l\u1ee3i \u00edch c\u1ee7a b\u1ed9 nh\u1edb \u0111\u1ec7m trong vi\u1ec7c thu h\u1eb9p kho\u1ea3ng c\u00e1ch t\u1ed1c \u0111\u1ed9 gi\u1eefa b\u1ed9 x\u1eed l\u00fd v\u00e0 b\u1ed9 nh\u1edb ch\u00ednh.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Memory Cache: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<p>B\u1ed9 nh\u1edb cache ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 \u0111\u1ec7m gi\u1eefa CPU v\u00e0 b\u1ed9 nh\u1edb ch\u00ednh, gi\u00fap truy c\u1eadp nhanh h\u01a1n v\u00e0o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean. Khi y\u00eau c\u1ea7u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, b\u1ed9 \u0111\u1ec7m s\u1ebd ki\u1ec3m tra xem d\u1eef li\u1ec7u \u0111\u00e3 c\u00f3 trong b\u1ed9 nh\u1edb c\u1ee7a n\u00f3 hay ch\u01b0a. N\u1ebfu \u0111\u00fang nh\u01b0 v\u1eady, b\u1ed9 nh\u1edb \u0111\u1ec7m s\u1ebd tr\u1ea3 l\u1ea1i d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp cho th\u1ef1c th\u1ec3 y\u00eau c\u1ea7u, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1ea7n truy c\u1eadp b\u1ed9 nh\u1edb \u0111\u1ec7m. N\u1ebfu kh\u00f4ng c\u00f3 d\u1eef li\u1ec7u, b\u1ed9 nh\u1edb \u0111\u1ec7m s\u1ebd t\u00ecm n\u1ea1p d\u1eef li\u1ec7u \u0111\u00f3 t\u1eeb b\u1ed9 nh\u1edb ch\u00ednh ho\u1eb7c b\u1ed9 l\u01b0u tr\u1eef, l\u01b0u tr\u1eef m\u1ed9t b\u1ea3n sao v\u00e0o b\u1ed9 nh\u1edb c\u1ee7a n\u00f3, sau \u0111\u00f3 th\u1ef1c hi\u1ec7n y\u00eau c\u1ea7u, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 thi\u1ebfu b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m s\u1eed d\u1ee5ng nguy\u00ean t\u1eafc c\u1ee5c b\u1ed9, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn xu h\u01b0\u1edbng c\u1ee7a c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh truy c\u1eadp v\u00e0o m\u1ed9t ph\u1ea7n nh\u1ecf, c\u1ee5c b\u1ed9 c\u1ee7a kh\u00f4ng gian b\u1ed9 nh\u1edb t\u1ea1i b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ed9 nh\u1edb \u0111\u1ec7m c\u00f3 hi\u1ec7u qu\u1ea3 cao v\u00ec h\u1ea7u h\u1ebft quy\u1ec1n truy c\u1eadp d\u1eef li\u1ec7u \u0111\u1ec1u t\u1eadp trung v\u00e0o m\u1ed9t t\u1eadp h\u1ee3p con t\u01b0\u01a1ng \u0111\u1ed1i nh\u1ecf trong t\u1ed5ng s\u1ed1 d\u1eef li\u1ec7u c\u00f3 s\u1eb5n.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a Memory Cache: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng c\u00e1c c\u00f4ng ngh\u1ec7 b\u1ed9 nh\u1edb t\u1ed1c \u0111\u1ed9 cao nh\u01b0 B\u1ed9 nh\u1edb truy c\u1eadp ng\u1eabu nhi\u00ean t\u0129nh (SRAM) ho\u1eb7c B\u1ed9 nh\u1edb truy c\u1eadp ng\u1eabu nhi\u00ean \u0111\u1ed9ng (DRAM). B\u1ed9 \u0111\u1ec7m d\u1ef1a tr\u00ean SRAM nhanh h\u01a1n nh\u01b0ng \u0111\u1eaft h\u01a1n, trong khi b\u1ed9 \u0111\u1ec7m d\u1ef1a tr\u00ean DRAM cung c\u1ea5p dung l\u01b0\u1ee3ng l\u1edbn h\u01a1n v\u1edbi chi ph\u00ed th\u1ea5p h\u01a1n nh\u01b0ng ch\u1eadm h\u01a1n m\u1ed9t ch\u00fat.<\/p>\n<p>B\u1ed9 \u0111\u1ec7m \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c th\u00e0nh c\u00e1c d\u00f2ng b\u1ed9 \u0111\u1ec7m, m\u1ed7i d\u00f2ng ch\u1ee9a m\u1ed9t kh\u1ed1i d\u1eef li\u1ec7u t\u1eeb b\u1ed9 nh\u1edb ch\u00ednh. Khi CPU y\u00eau c\u1ea7u d\u1eef li\u1ec7u, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n b\u1ed9 \u0111\u1ec7m s\u1ebd t\u00ecm ki\u1ebfm d\u1eef li\u1ec7u trong c\u00e1c d\u00f2ng b\u1ed9 \u0111\u1ec7m n\u00e0y. N\u1ebfu d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y, n\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1ea7n truy c\u1eadp b\u1ed9 \u0111\u1ec7m v\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u00ecm n\u1ea1p tr\u1ef1c ti\u1ebfp t\u1eeb b\u1ed9 \u0111\u1ec7m. N\u1ebfu d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 trong b\u1ed9 \u0111\u1ec7m, \u0111i\u1ec1u n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn thi\u1ebfu b\u1ed9 \u0111\u1ec7m v\u00e0 d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c t\u00ecm n\u1ea1p t\u1eeb b\u1ed9 nh\u1edb ch\u00ednh v\u00e0 \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 \u0111\u1ec7m \u0111\u1ec3 tham kh\u1ea3o trong t\u01b0\u01a1ng lai.<\/p>\n<p>\u0110\u1ec3 qu\u1ea3n l\u00fd b\u1ed9 \u0111\u1ec7m m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, nhi\u1ec1u thu\u1eadt to\u00e1n b\u1ed9 \u0111\u1ec7m kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, ch\u1eb3ng h\u1ea1n nh\u01b0 \u00cdt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng g\u1ea7n \u0111\u00e2y nh\u1ea5t (LRU), \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng g\u1ea7n \u0111\u00e2y nh\u1ea5t (MRU) v\u00e0 Thay th\u1ebf ng\u1eabu nhi\u00ean. C\u00e1c thu\u1eadt to\u00e1n n\u00e0y x\u00e1c \u0111\u1ecbnh d\u1eef li\u1ec7u n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c gi\u1eef trong b\u1ed9 \u0111\u1ec7m v\u00e0 d\u1eef li\u1ec7u n\u00e0o s\u1ebd b\u1ecb x\u00f3a khi b\u1ed9 \u0111\u1ec7m \u0111\u1ea1t \u0111\u1ebfn dung l\u01b0\u1ee3ng c\u1ee7a n\u00f3.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Memory Cache<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 proxy v\u00e0 \u1ee9ng d\u1ee5ng web:<\/p>\n<ol>\n<li>\n<p><strong>T\u1ed1c \u0111\u1ed9:<\/strong> B\u1ed9 nh\u1edb \u0111\u1ec7m nhanh h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c truy c\u1eadp d\u1eef li\u1ec7u t\u1eeb b\u1ed9 nh\u1edb ch\u00ednh ho\u1eb7c b\u1ed9 l\u01b0u tr\u1eef, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian ph\u1ea3n h\u1ed3i cho c\u00e1c y\u00eau c\u1ea7u.<\/p>\n<\/li>\n<li>\n<p><strong>Gi\u1ea3m \u0111\u1ed9 tr\u1ec5:<\/strong> B\u1eb1ng c\u00e1ch gi\u1eef d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean g\u1ea7n CPU h\u01a1n, b\u1ed9 nh\u1edb \u0111\u1ec7m s\u1ebd gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 li\u00ean quan \u0111\u1ebfn vi\u1ec7c truy xu\u1ea5t d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p><strong>S\u1eed d\u1ee5ng b\u0103ng th\u00f4ng th\u1ea5p h\u01a1n:<\/strong> B\u1ed9 nh\u1edb \u0111\u1ec7m gi\u00fap gi\u1ea3m nhu c\u1ea7u t\u00ecm n\u1ea1p d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean t\u1eeb b\u1ed9 nh\u1edb ch\u00ednh ho\u1eb7c b\u1ed9 nh\u1edb ngo\u00e0i, d\u1eabn \u0111\u1ebfn m\u1ee9c ti\u00eau th\u1ee5 b\u0103ng th\u00f4ng th\u1ea5p h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>Hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n:<\/strong> B\u1ed9 nh\u1edb \u0111\u1ec7m t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng v\u00ec n\u00f3 gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3 v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ea3n h\u1ed3i c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n<\/li>\n<li>\n<p><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed:<\/strong> B\u1ed9 nh\u1edb \u0111\u1ec7m c\u00f3 b\u1ed9 nh\u1edb d\u1ef1a tr\u00ean DRAM mang l\u1ea1i s\u1ef1 dung h\u00f2a gi\u1eefa t\u1ed1c \u0111\u1ed9 v\u00e0 dung l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed.<\/p>\n<\/li>\n<li>\n<p><strong>Khai th\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng:<\/strong> Cache t\u1eadn d\u1ee5ng nguy\u00ean t\u1eafc c\u1ee5c b\u1ed9 \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c truy c\u1eadp c\u00f9ng nhau, gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t h\u01a1n n\u1eefa.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i b\u1ed9 nh\u1edb \u0111\u1ec7m<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean v\u1ecb tr\u00ed v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng c\u1ee7a ch\u00fang trong h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i b\u1ed9 nh\u1edb \u0111\u1ec7m ch\u00ednh:<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1ed9 \u0111\u1ec7m c\u1ea5p 1 (L1)<\/td>\n<td>B\u1ed9 \u0111\u1ec7m L1 l\u00e0 b\u1ed9 \u0111\u1ec7m g\u1ea7n CPU nh\u1ea5t v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u1ef1c ti\u1ebfp tr\u00ean chip CPU. N\u00f3 l\u00e0 nhanh nh\u1ea5t nh\u01b0ng c\u00f3 dung l\u01b0\u1ee3ng nh\u1ecf h\u01a1n.<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 \u0111\u1ec7m c\u1ea5p 2 (L2)<\/td>\n<td>B\u1ed9 \u0111\u1ec7m L2 n\u1eb1m gi\u1eefa b\u1ed9 \u0111\u1ec7m L1 v\u00e0 b\u1ed9 nh\u1edb ch\u00ednh. N\u00f3 c\u00f3 dung l\u01b0\u1ee3ng l\u1edbn h\u01a1n nh\u01b0ng ch\u1eadm h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi b\u1ed9 \u0111\u1ec7m L1.<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 \u0111\u1ec7m c\u1ea5p 3 (L3)<\/td>\n<td>B\u1ed9 \u0111\u1ec7m L3 l\u00e0 b\u1ed9 \u0111\u1ec7m d\u00f9ng chung ph\u1ee5c v\u1ee5 nhi\u1ec1u l\u00f5i ho\u1eb7c b\u1ed9 x\u1eed l\u00fd trong CPU \u0111a l\u00f5i. N\u00f3 c\u00f3 dung l\u01b0\u1ee3ng l\u1edbn nh\u1ea5t nh\u01b0ng c\u00f3 th\u1ec3 ch\u1eadm h\u01a1n b\u1ed9 \u0111\u1ec7m L1 v\u00e0 L2.<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 \u0111\u1ec7m web<\/td>\n<td>B\u1ed9 \u0111\u1ec7m web \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 ph\u1ee5c v\u1ee5 n\u1ed9i dung web \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean, gi\u1ea3m th\u1eddi gian ph\u1ea3n h\u1ed3i v\u00e0 m\u1ee9c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng.<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 \u0111\u1ec7m \u0111\u0129a<\/td>\n<td>B\u1ed9 \u0111\u1ec7m \u0111\u0129a l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean t\u1eeb \u0111\u0129a ho\u1eb7c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef trong b\u1ed9 nh\u1edb, gi\u1ea3m th\u1eddi gian truy c\u1eadp \u0111\u0129a \u0111\u1ec3 truy xu\u1ea5t d\u1eef li\u1ec7u nhanh h\u01a1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng Memory Cache, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<p>B\u1ed9 nh\u1edb cache t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u mi\u1ec1n kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ol>\n<li>\n<p><strong>Tr\u00ecnh duy\u1ec7t web:<\/strong> Tr\u00ecnh duy\u1ec7t web s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c th\u00e0nh ph\u1ea7n trang web nh\u01b0 h\u00ecnh \u1ea3nh, t\u1eadp l\u1ec7nh v\u00e0 bi\u1ec3u \u0111\u1ecbnh ki\u1ec3u, c\u1ea3i thi\u1ec7n th\u1eddi gian t\u1ea3i trang cho c\u00e1c trang web th\u01b0\u1eddng xuy\u00ean truy c\u1eadp.<\/p>\n<\/li>\n<li>\n<p><strong>M\u00e1y ch\u1ee7 proxy:<\/strong> C\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy (oneproxy.pro) s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ec3 l\u01b0u tr\u1eef n\u1ed9i dung web \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i cho c\u00e1c m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3, t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e2n ph\u1ed1i n\u1ed9i dung v\u00e0 c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<li>\n<p><strong>H\u1ec7 th\u1ed1ng Qu\u1ea3n l\u00fd D\u1eef li\u1ec7u:<\/strong> H\u1ec7 th\u1ed1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u01b0\u1eddng s\u1eed d\u1ee5ng b\u1ed9 \u0111\u1ec7m \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c b\u1ea3n ghi c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean trong b\u1ed9 nh\u1edb, gi\u1ea3m th\u1eddi gian truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<\/ol>\n<p>B\u1ea5t ch\u1ea5p nh\u1eefng l\u1ee3i \u00edch c\u1ee7a n\u00f3, vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb \u0111\u1ec7m c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c:<\/p>\n<ul>\n<li>\n<p><strong>S\u1ef1 li\u00ean k\u1ebft b\u1ed9 nh\u1edb cache:<\/strong> Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111a l\u00f5i ho\u1eb7c ph\u00e2n t\u00e1n, vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a b\u1ed9 \u0111\u1ec7m tr\u1edf n\u00ean quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n v\u1ec1 d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1eadp b\u1ed9 nh\u1edb cache:<\/strong> N\u1ebfu dung l\u01b0\u1ee3ng b\u1ed9 nh\u1edb \u0111\u1ec7m qu\u00e1 nh\u1ecf ho\u1eb7c thu\u1eadt to\u00e1n b\u1ed9 nh\u1edb \u0111\u1ec7m kh\u00f4ng hi\u1ec7u qu\u1ea3 th\u00ec vi\u1ec7c lo\u1ea1i b\u1ecf v\u00e0 thay th\u1ebf b\u1ed9 nh\u1edb \u0111\u1ec7m th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 x\u1ea3y ra, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng h\u1ecfng b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ed9 \u0111\u1ec7m ngu\u1ed9i:<\/strong> Khi h\u1ec7 th\u1ed1ng kh\u1edfi \u0111\u1ed9ng ho\u1eb7c g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng x\u00f3a b\u1ed9 \u0111\u1ec7m, b\u1ed9 \u0111\u1ec7m s\u1ebd tr\u1ed1ng, d\u1eabn \u0111\u1ebfn th\u1eddi gian ph\u1ea3n h\u1ed3i t\u0103ng l\u00ean cho \u0111\u1ebfn khi b\u1ed9 \u0111\u1ec7m \u0111\u01b0\u1ee3c \u0111i\u1ec1n l\u1ea1i.<\/p>\n<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, c\u00e1c thu\u1eadt to\u00e1n b\u1ed9 \u0111\u1ec7m n\u00e2ng cao, ph\u00e2n v\u00f9ng b\u1ed9 \u0111\u1ec7m v\u00e0 k\u1ef9 thu\u1eadt t\u00ecm n\u1ea1p tr\u01b0\u1edbc b\u1ed9 \u0111\u1ec7m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>H\u00e3y so s\u00e1nh b\u1ed9 nh\u1edb \u0111\u1ec7m v\u1edbi m\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef li\u00ean quan:<\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>B\u1ed9 nh\u1edb ch\u00ednh<\/td>\n<td>B\u1ed9 nh\u1edb ch\u00ednh (RAM) l\u00e0 b\u1ed9 l\u01b0u tr\u1eef ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ee9a d\u1eef li\u1ec7u v\u00e0 h\u01b0\u1edbng d\u1eabn m\u00e0 CPU c\u1ea7n \u0111\u1ec3 x\u1eed l\u00fd theo th\u1eddi gian th\u1ef1c.<\/td>\n<\/tr>\n<tr>\n<td>\u1ed4 \u0111\u0129a c\u1ee9ng<\/td>\n<td>HDD l\u00e0 thi\u1ebft b\u1ecb l\u01b0u tr\u1eef c\u1ed1 \u0111\u1ecbnh, s\u1eed d\u1ee5ng b\u1ed9 l\u01b0u tr\u1eef t\u1eeb t\u00ednh \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 cung c\u1ea5p dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef l\u1edbn h\u01a1n nh\u01b0ng th\u1eddi gian truy c\u1eadp ch\u1eadm h\u01a1n so v\u1edbi b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/td>\n<\/tr>\n<tr>\n<td>\u1ed4 \u0111\u0129a th\u1ec3 r\u1eafn<\/td>\n<td>SSD l\u00e0 thi\u1ebft b\u1ecb l\u01b0u tr\u1eef nhanh h\u01a1n v\u00e0 b\u1ec1n h\u01a1n s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb flash, mang l\u1ea1i th\u1eddi gian truy c\u1eadp \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n nh\u01b0ng dung l\u01b0\u1ee3ng nh\u1ecf h\u01a1n so v\u1edbi HDD.<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1y ch\u1ee7 proxy<\/td>\n<td>M\u00e1y ch\u1ee7 proxy ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 c\u00e1c m\u00e1y ch\u1ee7 kh\u00e1c, cung c\u1ea5p c\u00e1c l\u1ee3i \u00edch v\u1ec1 b\u1ed9 nh\u1edb \u0111\u1ec7m, b\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh. B\u1ed9 nh\u1edb \u0111\u1ec7m n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y ch\u1ee7 proxy v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e2n ph\u1ed1i n\u1ed9i dung.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn Memory Cache<\/h2>\n<p>Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1ef1 ki\u1ebfn s\u1ebd ph\u00e1t tri\u1ec3n h\u01a1n n\u1eefa \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i. M\u1ed9t s\u1ed1 ph\u00e1t tri\u1ec3n ti\u1ec1m n\u0103ng trong t\u01b0\u01a1ng lai bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m theo t\u1ea7ng:<\/strong> Gi\u1edbi thi\u1ec7u nhi\u1ec1u c\u1ea5p \u0111\u1ed9 b\u1ed9 nh\u1edb \u0111\u1ec7m v\u1edbi t\u1ed1c \u0111\u1ed9 v\u00e0 dung l\u01b0\u1ee3ng kh\u00e1c nhau \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho nhi\u1ec1u ki\u1ec3u truy c\u1eadp kh\u00e1c nhau.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m b\u1ed9 nh\u1edb kh\u00f4ng thay \u0111\u1ed5i (NVM):<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 NVM m\u1edbi n\u1ed5i nh\u01b0 Intel Optane \u0111\u1ec3 x\u00e2y d\u1ef1ng b\u1ed9 nh\u1edb \u0111\u1ec7m v\u1edbi kh\u1ea3 n\u0103ng \u1ed5n \u0111\u1ecbnh.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m d\u1ef1a tr\u00ean m\u00e1y h\u1ecdc:<\/strong> Tri\u1ec3n khai c\u00e1c thu\u1eadt to\u00e1n h\u1ecdc m\u00e1y \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 t\u00ecm n\u1ea1p tr\u01b0\u1edbc d\u1eef li\u1ec7u, gi\u1ea3m l\u1ed7i b\u1ed9 nh\u1edb \u0111\u1ec7m v\u00e0 c\u1ea3i thi\u1ec7n t\u1ef7 l\u1ec7 nh\u1ea5n b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft M\u00e1y ch\u1ee7 proxy v\u1edbi B\u1ed9 nh\u1edb \u0111\u1ec7m<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u0103ng c\u01b0\u1eddng quy\u1ec1n ri\u00eang t\u01b0, b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u su\u1ea5t tr\u00ean Internet. T\u00edch h\u1ee3p b\u1ed9 nh\u1edb \u0111\u1ec7m trong c\u00e1c m\u00e1y ch\u1ee7 proxy, ch\u1eb3ng h\u1ea1n nh\u01b0 OneProxy (oneproxy.pro), mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i \u00edch:<\/p>\n<ol>\n<li>\n<p><strong>Cung c\u1ea5p n\u1ed9i dung nhanh h\u01a1n:<\/strong> B\u1eb1ng c\u00e1ch l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m n\u1ed9i dung web \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 cung c\u1ea5p n\u1ed9i dung \u0111\u00f3 nhanh ch\u00f3ng cho ng\u01b0\u1eddi d\u00f9ng, gi\u1ea3m th\u1eddi gian ph\u1ea3n h\u1ed3i v\u00e0 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m duy\u1ec7t web.<\/p>\n<\/li>\n<li>\n<p><strong>Ti\u1ebft ki\u1ec7m b\u0103ng th\u00f4ng:<\/strong> N\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m t\u1ea1i m\u00e1y ch\u1ee7 proxy gi\u00fap gi\u1ea3m l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c, gi\u00fap ti\u1ebft ki\u1ec7m b\u0103ng th\u00f4ng \u0111\u00e1ng k\u1ec3.<\/p>\n<\/li>\n<li>\n<p><strong>Gi\u1ea3m t\u1ea3i m\u00e1y ch\u1ee7:<\/strong> M\u00e1y ch\u1ee7 proxy h\u1ed7 tr\u1ee3 b\u1ed9 nh\u1edb \u0111\u1ec7m gi\u1ea3m b\u1edbt g\u00e1nh n\u1eb7ng cho m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3 b\u1eb1ng c\u00e1ch cung c\u1ea5p n\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m, do \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a m\u00e1y ch\u1ee7.<\/p>\n<\/li>\n<li>\n<p><strong>Tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng n\u00e2ng cao:<\/strong> Th\u1eddi gian t\u1ea3i nhanh h\u01a1n v\u00e0 \u0111\u1ed9 tr\u1ec5 gi\u1ea3m mang l\u1ea1i tr\u1ea3i nghi\u1ec7m duy\u1ec7t web m\u01b0\u1ee3t m\u00e0 h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<\/ol>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 b\u1ed9 nh\u1edb \u0111\u1ec7m, thu\u1eadt to\u00e1n b\u1ed9 \u0111\u1ec7m v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 li\u00ean quan, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/1673764\" target=\"_new\" rel=\"noopener nofollow\">T\u1ea1p ch\u00ed m\u00e1y t\u00ednh IEEE \u2013 B\u1ed9 nh\u1edb \u0111\u1ec7m<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Cache_memory\" target=\"_new\" rel=\"noopener nofollow\">Wikipedia \u2013 B\u1ed9 nh\u1edb \u0111\u1ec7m<\/a><\/li>\n<li><a href=\"https:\/\/www.intel.com\/content\/www\/us\/en\/architecture-and-technology\/intel-active-management-technology.html\" target=\"_new\" rel=\"noopener nofollow\">Gi\u1edbi thi\u1ec7u v\u1ec1 b\u1ed9 nh\u1edb \u0111\u1ec7m<\/a><\/li>\n<\/ol>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m l\u00e0 c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng ti\u1ebfp t\u1ee5c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i c\u0169ng nh\u01b0 m\u00e1y ch\u1ee7 proxy. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c nguy\u00ean t\u1eafc, \u1ee9ng d\u1ee5ng v\u00e0 nh\u1eefng ti\u1ebfn b\u1ed9 ti\u1ec1m n\u0103ng trong t\u01b0\u01a1ng lai c\u1ee7a n\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 khai th\u00e1c t\u1ed1t h\u01a1n s\u1ee9c m\u1ea1nh c\u1ee7a n\u00f3 \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n to\u00e1n nhanh h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>","protected":false},"featured_media":477990,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477989","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Memory Cache: Boosting Proxy Server Performance<\/mark>","faq_items":[{"question":"What is memory cache, and how does it improve proxy server performance?","answer":"<p>Memory cache is a high-speed data storage mechanism that stores frequently accessed data temporarily. It acts as a buffer between the CPU and main memory, reducing the need to fetch data from the original source repeatedly. For proxy servers like OneProxy (oneproxy.pro), memory cache enhances performance by minimizing response times and alleviating the load on backend servers. By caching frequently requested web content, proxy servers can deliver it faster to users, resulting in a smoother browsing experience and reduced latency.<\/p>"},{"question":"What is the history behind memory cache?","answer":"<p>The concept of caching dates back to the early days of computing. The first mention of \"cache\" in computer memory can be found in a 1980 paper titled \"Cache Memories\" by M. D. Hill and A. J. Smith. They highlighted the benefits of cache memory in bridging the speed gap between the CPU and main memory.<\/p>"},{"question":"How does memory cache work internally?","answer":"<p>Memory cache is built using high-speed memory technologies like SRAM or DRAM. It is organized into cache lines, each containing a block of data from the main memory. When a request is made, the cache controller checks if the data is present in the cache. If found, it's a cache hit; otherwise, it's a cache miss, and the data is fetched from the main memory and stored in the cache for future access.<\/p>"},{"question":"What are the key features of memory cache?","answer":"<p>Memory cache offers speed, reduced latency, lower bandwidth usage, improved performance, cost-effectiveness, and exploitation of the principle of locality. These features make it indispensable for enhancing the performance of computer systems and proxy servers.<\/p>"},{"question":"What types of memory cache exist?","answer":"<p>Memory cache can be categorized based on their position and usage within a system. The main types are Level 1 Cache (L1), Level 2 Cache (L2), Level 3 Cache (L3), Web Cache, and Disk Cache. Each type serves a specific purpose in improving data access and overall system performance.<\/p>"},{"question":"How is memory cache used, and what are the challenges associated with it?","answer":"<p>Memory cache finds applications in web browsers, proxy servers, and database management systems. However, cache coherency, cache thrashing, and cold cache issues can arise. To address these challenges, advanced caching algorithms, cache partitioning, and cache prefetching techniques are employed.<\/p>"},{"question":"How does memory cache compare with other similar terms like HDD, SSD, and proxy servers?","answer":"<p>Memory cache is different from main memory, HDD, and SSD. It acts as a high-speed buffer for frequently accessed data, whereas main memory is the primary storage for real-time processing. HDD and SSD are storage devices with different characteristics, and proxy servers serve as intermediaries between clients and servers, utilizing cache memory to improve content delivery.<\/p>"},{"question":"What does the future hold for memory cache?","answer":"<p>The future of memory cache may involve tiered caching, non-volatile memory (NVM) cache, and machine learning-based caching to enhance performance further and meet the demands of evolving technology.<\/p>"},{"question":"How do proxy servers utilize memory cache?","answer":"<p>Proxy servers like OneProxy (oneproxy.pro) use memory cache to store frequently requested web content. By doing so, they reduce response times, save bandwidth, and enhance user experiences, making browsing smoother and faster.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477989\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/477990"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=477989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}