\ub300\uc2dc\ubcf4\ub4dc\uc5d0\uc11c \uc790\uc6d0 \uc0ac\uc6a9\ub960\uc744 \uc0b4\ud3b4\ubcf4\uc558\ub294\ub370 \ub2e4\ub978 \uc790\uc6d0 \uc0ac\uc6a9\ub960\uc740 \uc815\uc0c1\uc778\ub370 \uc720\ub3c5 Memory\ub9cc 90% \uc774\uc0c1 \uc0ac\uc6a9 \uc911!! Memory \ubb38\uc81c\uac00 \uc788\ub294 \uac83\uc744 \uc54c\uac8c\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n VSZ, RSS \ud655\uc778 \uc2dc Apache, PHP\uc5d0\uc11c\ub9cc \ub300\ub7c9 \uc0ac\uc6a9 \uc911\uc774\ub77c \uc6f9 \ub85c\uadf8\ub97c \uba3c\uc800 \ud655\uc778\ud574\ubcf4\uc558\uc2b5\ub2c8\ub2e4. sar\ub97c \uc774\uc6a9\ud558\uc5ec \ucd94\uac00 \uac80\ud1a0\ub97c \uc9c4\ud589\ud558\uc600\uc2b5\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c free \uba85\ub839\uc5b4\ub85c \ud655\uc778\ud574\ubcf4\ub2c8 buff\/cache\uac00 \ube44\uc6cc\uc9c0\uc9c0 \uc54a\uace0 \uadf8\ub300\ub85c \ub0a8\uc544\uc788\ub294 \uc0c1\ud0dc\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n \uc6b0\uc120 \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc774\uc6a9\ud558\uc5ec \uce90\uc2dc \uba54\ubaa8\ub9ac\ub97c \uc9c0\uc6b0\uace0 \uba54\ubaa8\ub9ac \ud655\ubcf4\ub97c \uc9c4\ud589 \ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n (sync && echo 3 > \/proc\/sys\/vm\/drop_caches \uba85\ub839\uc5b4\uc5d0 \ub300\ud574\uc11c\ub294 \uc544\ub798\uc5d0\uc11c \ucd94\uac00\uc801\uc778 \uc124\uba85\uc744 \ud558\ub3c4\ub85d\ud558\uaca0\uc2b5\ub2c8\ub2e4.)<\/p>\n\n\n\n \uc774\ud6c4 \uba54\ubaa8\ub9ac\ub294 \uc815\uc0c1\ud654 \ub418\uc5c8\uc73c\ub098 \ucd94\uac00\uc801\uc778 \uc870\uce58\ub97c \ud558\uc9c0 \uc54a\uc73c\uba74 \ub3d9\uc77c\ud55c \uc7a5\uc560\uac00 \ub2e4\uc2dc \ubc1c\uc0dd\ud560 \uc218 \uc788\uc5b4 \uc6b0\uc120 swap\uc744 \uc0dd\uc131\ud558\uae30\ub85c \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n \uc5f0\uacb0\uc774 \uc798\ub410\ub294\uc9c0 \ud655\uc778 \ud6c4 \uc774\uc81c \ud30c\ud2f0\uc158\uc744 \uc544\ub798\uc640 \uac19\uc774 \uc0dd\uc131\ud574\uc8fc\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n swap \ud30c\ud2f0\uc158\uc774 \uc798 \uc0dd\uc131\ub418\uc5c8\ub2e4\uba74 mkswap\uc73c\ub85c swap\uc744 \ub9cc\ub4e4\uc5b4\uc8fc\uace0 blkid\uc5d0 \ub098\uc628 UUID\ub97c \ucc38\uace0\ud558\uc5ec \/etc\/fstab\uc5d0 \ucd94\uac00\ud574\uc90d\ub2c8\ub2e4. swapon \uba85\ub839\uc5b4\uc5d0 -a \uc635\uc158\uc744 \uc8fc\uba74 \/etc\/fstab\uc5d0 \uc788\ub294 swap \ud30c\ud2f0\uc158\uc744 \ubaa8\ub450 enable \ud569\ub2c8\ub2e4. \uc800\ub294 \ubcfc\ub968\uc744 2\uac1c \ucd94\uac00\ud558\uc5ec \ud558\uc5ec swap \ubcfc\ub968 \ud558\ub098\uac00 \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\ub354\ub77c\ub3c4 \ub098\uba38\uc9c0 \ud558\ub098\ub85c \uc791\ub3d9\ud560 \uc218 \uc788\ub3c4\ub85d \ud574\ub450\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n swap \ubcfc\ub968\uc744 \ub530\ub85c \ucd94\uac00\ud560 \uc218 \uc5c6\uc744 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ud6c4 \/etc\/fstab\uc5d0 \ub4f1\ub85d\ud574\uc8fc\uace0 swapon -a \ud574\uc8fc\ub294 \uac83\uc740 \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n Linux\uc5d0\uc11c \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc774\uc6a9\ud558\uc5ec \uce90\uc2dc\ub97c \ube44\uc6b8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n sync\ub97c \ud1b5\ud574 \ud30c\uc77c \uc2dc\uc2a4\ud15c \ubc84\ud37c\ub97c \ud50c\ub7ec\uc2dc\ud569\ub2c8\ub2e4. \ub2e8 echo 3\uc744 \uc0ac\uc6a9\ud55c\ub2e4\uba74 \ubaa8\ub450 \ube44\uc6b0\uae30\uac00 \uac00\ub2a5\ud558\uc9c0\ub9cc \ub514\uc2a4\ud06c I\/O\uac00 \ud65c\ubc1c\ud55c \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc0ac\uc6a9\ud558\uac8c \ub41c\ub2e4\uba74 CPU \uc790\uc6d0 \uc0ac\uc6a9\ub7c9\uc774 \uc77c\uc2dc\uc801\uc73c\ub85c \uc0c1\uc2b9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n \u2b06 (\uc704 \uba85\ub839\uc5b4\ub85c inode \uce90\uc2dc\uac12 \ud655\uc778\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.)<\/p>\n\n\n\n \uc11c\ube44\uc2a4 \ud504\ub85c\uc138\uc2a4 \ud560\ub2f9\ub7c9\uc744 \uacc4\uc0b0\ud574\ubcf4\uc544\ub3c4 \uc804\uccb4 \uba54\ubaa8\ub9ac\uc5d0 \ube44\ud574 \uc720\ud734 \uba54\ubaa8\ub9ac\uac00 \uc5c6\uc744 \ub54c\uac00 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ucee4\ub110\uc5d0\uc11c \uba54\ubaa8\ub9ac\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uae30\ub54c\ubb38\uc778\ub370 \ucee4\ub110\uc5d0\uc11c \uc0ac\uc6a9\ud558\uace0 \uc788\ub294 \uba54\ubaa8\ub9ac\ub294 slab \uba54\ubaa8\ub9ac \uc601\uc5ed\uc744 \ud655\uc778\ud558\uba74 \uc5bc\ub9c8\ub098 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294\uc9c0 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n Slab\uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc774 \uae4a\uc774\uc788\uac8c \uc124\uba85\ub418\uc5b4 \uc788\ub294 \uacf3\uc740 \ub9c1\ud06c\ub85c \ub0a8\uaca8\ub450\uc5c8\uc73c\ub2c8 \ucc38\uace0\ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\n![\"\"](\"https:\/\/cdn.manvscloud.com\/wp-content\/uploads\/2021\/05\/22105835\/memory-1024x427.png\")
<\/figure>\n\n\n\n
1\uc8fc\uc77c \ub2e8\uc704\ub85c logrotate\uac00 \uac78\ub824\uc788\uc5b4 \ucd5c\uadfc \ub85c\uadf8\ub9cc \ud30c\uc545\ud560 \uc218 \uc788\ub294 \uc0c1\ud0dc\uc600\ub294\ub370 \uc6b0\uc120 \uacf5\uaca9\uc131\uc73c\ub85c \ub300\ub7c9 \uc811\uadfc\ud558\ub294 IP\uac00 \uc874\uc7ac\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc600\uace0 \uc758\uc2ec\ub418\ub294 IP\ub294 WAF\uc5d0\uc11c \ucd94\uac00 \uac80\ud1a0\ud558\uc600\ub294\ub370 \ub530\ub85c \uacf5\uaca9\uc131 \uc811\uadfc\uc740 \uc544\ub2cc \uac83\uc73c\ub85c \ud30c\uc545\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n[root@ip-10-0-1-68 httpd]# cat \/var\/log\/httpd\/access_log | awk '{print $1}' | sort -n | uniq -c | grep -Ev \"10.0|172.16|192.168|-\" | sort -rn | head -n 10\n 399 88.150.-.-\n 319 121.125.-.-\n 200 125.141.-.-\n 186 63.141.-.-\n 83 66.249.-.-\n 75 66.249.-.-\n 49 117.111.-.-\n 46 52.79.-.-\n 37 66.249.-.-\n 36 45.146.-.-<\/pre>\n\n\n\n
\uc778\uc2a4\ud134\uc2a4 \uc7ac\uc2dc\uc791 \ud6c4\uc5d0\ub3c4 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc774 80% \uc774\uc0c1 \uacc4\uc18d \uc720\uc9c0 \uc911\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n[root@ip-10-0-1-68 ~]# sar -r\nLinux 4.14.193-149.317.amzn2.x86_64 (ip-10-0-1-68.ap-northeast-2.compute.internal) \t05\/22\/2021 \t_x86_64_\t(1 CPU)\n\n12:00:02 AM kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty\n12:10:01 AM 65860 941080 93.46 0 103936 4407680 437.73 785580 28120 120\n12:20:01 AM 58924 948016 94.15 0 106820 4414144 438.37 789028 31556 176\n12:30:01 AM 66768 940172 93.37 0 103328 4410048 437.97 784968 28244 208\n12:40:01 AM 64996 941944 93.55 0 102724 4410256 437.99 787600 26904 232\n12:50:01 AM 61056 945884 93.94 0 103356 4414996 438.46 792132 26448 40\n01:00:01 AM 68052 938888 93.24 0 96388 4412948 438.25 787572 24756 112\n01:10:01 AM 63336 943604 93.71 0 100240 4414108 438.37 789356 27116 112\n01:20:02 AM 65780 941160 93.47 0 102172 4408852 437.85 785084 29272 112\n01:30:01 AM 61096 945844 93.93 0 108252 4408644 437.83 \n.\n. [\uc0dd\ub7b5]\n.\n08:26:04 AM LINUX RESTART\n08:36:33 AM LINUX RESTART\n08:40:02 AM kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty\n08:50:01 AM 192852 814088 80.85 2088 365732 3775100 374.91 401104 280868 296\n09:00:01 AM 203284 803656 79.81 2088 378252 3162244 314.04 376764 289192 328\n09:10:01 AM 195364 811576 80.60 2088 378620 3171048 314.92 384684 289380 332\n09:20:01 AM 194748 812192 80.66 2088 379568 3173428 315.16 383840 290344 328\n09:30:01 AM 181256 825684 82.00 2088 379744 3187564 316.56 407336 280344 328\nAverage: 193501 813439 80.78 2088 376383 3293877 327.12 390746 286026 322<\/pre>\n\n\n\n
[root@ip-10-0-1-68 ~]# free -m\n total used free shared buff\/cache available\nMem: 983 448 125 60 408 338\nSwap: 0 0 0<\/pre>\n\n\n\n
[root@ip-10-0-1-68 ~]# sync && echo 3 > \/proc\/sys\/vm\/drop_caches<\/pre>\n\n\n\n
[root@ip-10-0-1-68 ~]# free -m\n total used free shared buff\/cache available\nMem: 983 435 365 60 182 358\nSwap: 0 0 0<\/pre>\n\n\n\n
\n\n\n\n Create Swap<\/h3>\n\n\n\n
![\"\"](\"https:\/\/cdn.manvscloud.com\/wp-content\/uploads\/2021\/05\/22110256\/swap-vol-01-1024x557.png\")
![\"\"](\"https:\/\/cdn.manvscloud.com\/wp-content\/uploads\/2021\/05\/22110302\/swap-vol-01-con-1024x345.png\")
[root@ip-10-0-1-68 ~]# fdisk -l\nDisk \/dev\/xvda: 15 GiB, 16106127360 bytes, 31457280 sectors\nUnits: sectors of 1 * 512 = 512 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisklabel type: gpt\nDisk identifier: 66F46060-ED00-4D14-9841-F5CB6310A14A\n\nDevice Start End Sectors Size Type\n\/dev\/xvda1 4096 31457246 31453151 15G Linux filesystem\n\/dev\/xvda128 2048 4095 2048 1M BIOS boot\n\nPartition table entries are not in disk order.\n\n\nDisk \/dev\/xvdb: 3 GiB, 3221225472 bytes, 6291456 sectors\nUnits: sectors of 1 * 512 = 512 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes<\/pre>\n\n\n\n
[root@ip-10-0-1-68 ~]# fdisk \/dev\/xvdb\nWelcome to fdisk (util-linux 2.30.2).\nChanges will remain in memory only, until you decide to write them.\nBe careful before using the write command.\n\nDevice does not contain a recognized partition table.\nCreated a new DOS disklabel with disk identifier 0xb9e2e385.\n\nCommand (m for help): n\nPartition type\n p primary (0 primary, 0 extended, 4 free)\n e extended (container for logical partitions)\nSelect (default p): p\nPartition number (1-4, default 1): 1\nFirst sector (2048-6291455, default 2048): \nLast sector, +sectors or +size{K,M,G,T,P} (2048-6291455, default 6291455): \n\nCreated a new partition 1 of type 'Linux' and of size 3 GiB.\n\nCommand (m for help): t\nSelected partition 1\nHex code (type L to list all codes): 82\nChanged type of partition 'Linux' to 'Linux swap \/ Solaris'.\n\nCommand (m for help): w\nThe partition table has been altered.\nCalling ioctl() to re-read partition table.\nSyncing disks.\n\n[root@ip-10-0-1-68 ~]# fdisk -l | tail -n 9\nDisk \/dev\/xvdb: 3 GiB, 3221225472 bytes, 6291456 sectors\nUnits: sectors of 1 * 512 = 512 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisklabel type: dos\nDisk identifier: 0xb9e2e385\n\nDevice Boot Start End Sectors Size Id Type\n\/dev\/xvdb1 2048 6291455 6289408 3G 82 Linux swap \/ Solaris<\/pre>\n\n\n\n
\uc774 \ubd80\ubd84\uc744 \uc798\ubabb \ucd94\uac00\ud558\uac8c\ub420 \uacbd\uc6b0 \uc815\uc0c1 \ubd80\ud305\uc774 \ub418\uc9c0\uc54a\uc544 \ubc88\uac70\ub85c\uc6b4 \ucd94\uac00 \uc791\uc5c5\uc774 \uc0dd\uae38 \uc218 \uc788\uc73c\ub2c8 \uc798 \ucd94\uac00\ud574\uc90d\uc2dc\ub2e4.<\/p>\n\n\n\n[root@ip-10-0-1-68 ~]# mkswap \/dev\/xvdb1\n[root@ip-10-0-1-68 ~]# blkid \/dev\/xvdb1\n\/dev\/xvdb1: UUID=\"dc082f63-27d8-41b1-ad74-8b019162f766\" TYPE=\"swap\" PARTUUID=\"b9e2e385-01\"\n[root@ip-10-0-1-68 ~]# vi \/etc\/fstab\n\nUUID=dc082f63-27d8-41b1-ad74-8b019162f766 swap swap defaults 0 0\n\n[root@ip-10-0-1-68 ~]# swapon -a\n[root@ip-10-0-1-68 ~]# swapon -s\nFilename\t\t\t\tType\t\tSize\tUsed\tPriority\n\/dev\/xvdb1 \tpartition\t3144700\t0\t-2\n<\/pre>\n\n\n\n
-s \uc635\uc158\uc740 \uc0ac\uc6a9\uc911\uc778 \uc2a4\uc651 \uc7a5\uce58\ub97c \uc694\uc57d\ud558\uc5ec \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n[root@ip-10-0-1-68 ~]# swapon -s\nFilename\t\t\t\tType\t\tSize\tUsed\tPriority\n\/dev\/xvdb1 \tpartition\t3144700\t0\t-2\n\/dev\/xvdc1 \tpartition\t3144700\t0\t-3\n\n[root@ip-10-0-1-68 ~]# free -m\n total used free shared buff\/cache available\nMem: 983 461 332 60 188 328\nSwap: 6141 0 6141<\/pre>\n\n\n\n
\n\n\n\n Swapfile<\/h3>\n\n\n\n
\uadf8\ub54c\ub294 swapfile\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294\ub370 \uac04\ub2e8\ud558\uac8c swapfile\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\ub9cc \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n\/\/ dd \uba85\ub839\uc5b4\ub97c \uc774\uc6a9\ud574\uc11c \uc6a9\ub7c9 \uc9c0\uc815 \ubc0f swap\ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc90d\ub2c8\ub2e4. \n(mkdir\ub85c \ub514\ub809\ud1a0\ub9ac \ub9cc\ub4e4\uc5b4\ub450\ub294 \uac83 \uc544\ub2d9\ub2c8\ub2e4.)\n[root@manvscloud-test-pub-kr2 ~]# dd if=\/dev\/zero of=\/swapfile bs=1MiB count=4096\n4096+0 records in\n4096+0 records out\n4294967296 bytes (4.3 GB) copied, 12.3267 s, 348 MB\/s\n\/\/\uad8c\ud55c \ubcc0\uacbd\n[root@manvscloud-test-pub-kr2 ~]# chmod 600 \/swapfile\n\/\/\uc2a4\uc651 \uc0dd\uc131\n[root@manvscloud-test-pub-kr2 ~]# mkswap \/swapfile\nSetting up swapspace version 1, size = 4194300 KiB\nno label, UUID=4e0d57c0-dd8f-4527-af2d-659ce04921b7<\/pre>\n\n\n\n
\/swap01 swap swap defaults 0 0<\/pre>\n\n\n\n
\n\n\n\n sync && echo 3 > \/proc\/sys\/vm\/drop_caches<\/h3>\n\n\n\n
sync && echo 1 > \/proc\/sys\/vm\/drop_caches
(= sync; echo 1 > \/proc\/sys\/vm\/drop_caches)<\/li>
sync && echo 2 > \/proc\/sys\/vm\/drop_caches
(= sync; echo 2 > \/proc\/sys\/vm\/drop_caches)<\/li>
sync && echo 3 > \/proc\/sys\/vm\/drop_caches
(= sync; echo 3 > \/proc\/sys\/vm\/drop_caches)<\/li><\/ul>\n\n\n\n
(\uac1c\ubc1c\ucabd\uc740 \uc798 \ubaa8\ub974\uc9c0\ub9cc JAVA\ub098 Python\uc5d0\uc11c flush() \ud568\uc218\uac00 \ubc84\ud37c \ube44\uc6b0\ub294 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ub418\ub294\uac78 \ubcf8 \uc801\uc774 \uc788\uc2b5\ub2c8\ub2e4)<\/p>\n\n\n\n
\ub300\ubd80\ubd84\uc758 \uacbd\uc6b0 \ucee4\ub110\uc740 \ub514\uc2a4\ud06c\uc5d0\uc11c \uc77d\uac70\ub098 \ub514\uc2a4\ud06c\uc5d0 \uc4f8 \ub54c \ud398\uc774\uc9c0 \uce90\uc2dc\ub97c \ucc38\uc870\ud569\ub2c8\ub2e4.
I\/O \uc18d\ub3c4\uc640 \ud37c\ud3ec\uba3c\uc2a4\ub97c \ub192\uc774\uae30 \uc704\ud574 \uc2dc\uc2a4\ud15c\uc774 \ud560\ub2f9\ud55c \uc784\uc2dc \uba54\ubaa8\ub9ac \uc800\uc7a5\uc18c\ub85c \uc784\uc2dc \uba54\ubaa8\ub9ac\uc5d0 \uc800\uc7a5\ub41c \ud30c\uc77c\uc744 \ub2e4\uc2dc \uc77d\uc744 \ub54c \ud574\ub2f9 \uba54\ubaa8\ub9ac\uc5d0\uc11c \ubc14\ub85c \ubd88\ub7ec\uc624\uae30\uc5d0 \ub514\uc2a4\ud06c\uc758 \uc77d\uae30,\uc4f0\uae30 \uc18d\ub3c4\uac00 \ube68\ub77c\uc9d1\ub2c8\ub2e4. (Windows\uc5d0\uc11c\ub294 \ub3d9\uc77c\ud55c \uc5ed\ud560\ub85c \ud398\uc774\uc9c0 \ud30c\uc77c\uc774 \uc788\uc2b5\ub2c8\ub2e4.)<\/span><\/li>
(\ubb3c\ub9ac\uc801 \uc704\uce58, \ud06c\uae30, \uc0dd\uc131 \uc77c\uc2dc, \uad8c\ud55c)<\/span><\/li><\/ul>\n\n\n\n[root@ip-10-0-1-68 ~]# vmstat -m | head -n 1; vmstat -m | grep proc_inode_cache\nCache Num Total Size Pages\nproc_inode_cache 13570 13570 688 23<\/pre>\n\n\n\n
\u203b TIP-1 (Slab) <\/strong>?<\/h4>\n\n\n\n
[root@ip-10-0-1-68 ~]# cat \/proc\/meminfo | grep Slab\nSlab: 48832 kB<\/pre>\n\n\n\n
![](\"https:\/\/img1.daumcdn.net\/thumb\/R800x0\/?scode=mtistory2&fname=https%3A%2F%2Ft1.daumcdn.net%2Fcfile%2Ftistory%2F9993F348601E306C15\")
<\/div><\/div>![\"\"](\"https:\/\/cdn.manvscloud.com\/wp-content\/uploads\/2021\/05\/24025302\/memory.jpg\")
<\/figure><\/div>\n\n\n\n![](\"https:\/\/cdn.linuxer.name\/wp-content\/uploads\/2021\/04\/07215055\/image-1.png\")
<\/div><\/div>