$ slabtop -s c Active / Total Objects (% used) : 101699404 / 101720718 (100.0%) Active / Total Slabs (% used) : 1616653 / 1616653 (100.0%) Active / Total Caches (% used) : 82 / 116 (70.7%) Active / Total Size (% used) : 6459028.16K / 6465598.40K (99.9%) Minimum / Average / Maximum Object : 0.01K / 0.06K / 18.88K OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 101334656 101325785 0% 0.06K 1583354 64 6333416K kmalloc-64 26772 26772 100% 2.02K 21186 15 677952K ext4_inode_cache 59376 59376 100% 0.24K 3711 16 14844K ext4_groupinfo_4k 1573 1507 0% 1.02K 375 31 12000K proc_inode_cache 35880 32956 0% 0.30K 1380 26 11040K dentry 87633 86958 0% 0.10K 2247 39 8988K buffer_head 11228 10219 0% 0.57K 401 28 6416K radix_tree_node 6128 6013 0% 0.95K 383 16 6128K inode_cache 328 264 0% 8.00K 82 4 2624K kmalloc-8192 2112 1755 0% 1.16K 80 27 2560K shmem_inode_cache 14582 14582 100% 0.17K 634 23 2536K kernfs_node_cache 289 222 0% 7.62K 73 4 2336K task_struct 3968 2491 0% 0.50K 248 16 1984K kmalloc-512 914 700 0% 2.00K 58 16 1856K kmalloc-2048 1636 1537 0% 1.00K 103 16 1648K kmalloc-1024 6573 4649 0% 0.19K 313 21 1252K kmalloc-192 246 217 0% 4.00K 36 8 1152K kmalloc-4096 378 309 0% 2.19K 27 14 864K sighand_cache 4422 3139 0% 0.18K 201 22 804K vm_area_struct 19686 19686 100% 0.04K 193 102 772K ext4_extent_status 572 469 0% 1.19K 22 26 704K signal_cache 286 240 0% 2.31K 22 13 704K mm_struct 252 195 0% 1.75K 22 18 704K UNIX 12155 12155 100% 0.05K 143 85 572K ftrace_event_field 5208 4891 0% 0.09K 124 42 496K kmalloc-96 2478 2099 0% 0.19K 118 21 472K anon_vma 1872 1872 100% 0.25K 117 16 468K kmalloc-256 551 551 100% 0.81K 29 19 464K files_cache 124 92 0% 2.56K 14 12 448K TCP 294 294 100% 1.50K 14 21 448K UDP 3168 2674 0% 0.12K 99 32 396K kmalloc-128 1176 1080 0% 0.32K 49 24 392K taskstats 368 300 0% 1.00K 23 16 368K sock_inode_cache 4872 4872 100% 0.07K 87 56 348K Acpi-Operand 920 828 0% 0.34K 40 23 320K nfsd4_files 4928 4928 100% 0.06K 77 64 308K ext4_io_end 2304 2080 0% 0.11K 64 36 256K file_lock_ctx 31744 31744 100% 0.01K 62 512 248K kmalloc-8 696 600 0% 0.33K 29 24 232K nfsd4_stateids 5814 5814 100% 0.04K 57 102 228K Acpi-Namespace 6784 6784 100% 0.03K 53 128 212K jbd2_revoke_record_s 3285 3285 100% 0.05K 45 73 180K mbcache 522 522 100% 0.27K 18 29 144K tw_sock_TCP 425 425 100% 0.31K 17 25 136K jbd2_transaction_s 288 288 100% 0.44K 16 18 128K mnt_cache 88 88 100% 1.44K 4 22 128K bdev_cache 44 44 100% 2.79K 4 11 128K request_queue 92 92 100% 1.38K 4 23 128K mqueue_inode_cache 44 44 100% 2.75K 4 11 128K TCPv6 72 72 100% 1.69K 4 18 128K UDPv6 75 75 100% 1.24K 3 25 96K fat_inode_cache