Hi all,After using the bullseye-backports kernel, my vps ran out of memory after a period of time.
  
The memory usage graph. But unfortunately, it was restarted directly at that time, and no log was kept.
After rebooting, the memory used by kernel is rising steadily again.  
Some info : ``` # lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 11 (bullseye) Release: 11 Codename: bullseye ``` ``` # uname -aLinux git 6.0.0-0.deb11.6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.0.12-1~bpo11+1 (2022-12-19) x86_64 GNU/Linux
``` ``` # free -htotal used free shared buff/cache available
Mem: 15Gi 6.4Gi 268Mi 1.0Gi 8.6Gi 7.5Gi Swap: 15Gi 3.4Gi 12Gi ``` ``` # smem -tw Area Used Cache Noncache firmware/hardware 0 0 0 kernel image 0 0 0 kernel dynamic memory 10540648 7228024 3312624 userspace memory 4880104 1316400 3563704 free memory 582536 582536 0 ---------------------------------------------------------- 16003288 9126960 6876328 ``` ``` # cat /proc/meminfo MemTotal: 16003288 kB MemFree: 359100 kB MemAvailable: 7302416 kB Buffers: 8 kB Cached: 8232860 kB SwapCached: 1052540 kB Active: 5892304 kB Inactive: 6280600 kB Active(anon): 2667552 kB Inactive(anon): 2371940 kB Active(file): 3224752 kB Inactive(file): 3908660 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 16776184 kB SwapFree: 13276388 kB Zswap: 1581384 kB Zswapped: 3437856 kB Dirty: 42120 kB Writeback: 0 kB AnonPages: 3853124 kB Mapped: 1305832 kB Shmem: 1099400 kB KReclaimable: 258080 kB Slab: 1371656 kB SReclaimable: 258080 kB SUnreclaim: 1113576 kB KernelStack: 20384 kB PageTables: 384020 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 24777828 kB Committed_AS: 14045920 kB VmallocTotal: 34359738367 kB VmallocUsed: 64152 kB VmallocChunk: 0 kB Percpu: 7392 kB HardwareCorrupted: 0 kB AnonHugePages: 163840 kB ShmemHugePages: 0 kB ShmemPmdMapped: 0 kB FileHugePages: 0 kB FilePmdMapped: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 272240 kB DirectMap2M: 15063040 kB DirectMap1G: 1048576 kB ``` ``` # cat /proc/slabinfo slabinfo - version: 2.1# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail> SCTPv6 168 168 1536 21 8 : tunables 0 0 0 : slabdata 8 8 0 SCTP 69 69 1408 23 8 : tunables 0 0 0 : slabdata 3 3 0 wg_peer 21 21 1552 21 8 : tunables 0 0 0 : slabdata 1 1 0 ovl_inode 1952 3828 728 22 4 : tunables 0 0 0 : slabdata 174 174 0 nf_conntrack 5292 12608 256 32 2 : tunables 0 0 0 : slabdata 394 394 0 fat_inode_cache 20 20 792 20 4 : tunables 0 0 0 : slabdata 1 1 0 fat_cache 0 0 40 102 1 : tunables 0 0 0 : slabdata 0 0 0 fuse_request 0 0 152 26 1 : tunables 0 0 0 : slabdata 0 0 0 fuse_inode 0 0 832 39 8 : tunables 0 0 0 : slabdata 0 0 0 btrfs_ordered_extent 666 777 440 37 4 : tunables 0 0 0 : slabdata 21 21 0 btrfs_extent_map 1004104 1232168 144 28 1 : tunables 0 0 0 : slabdata 44006 44006 0 bio-344 588 609 384 21 2 : tunables 0 0 0 : slabdata 29 29 0 bio-224 32 32 256 32 2 : tunables 0 0 0 : slabdata 1 1 0 btrfs_free_space 27302 32994 104 39 1 : tunables 0 0 0 : slabdata 846 846 0 btrfs_inode 39102 40431 1200 27 8 : tunables 0 0 0 : slabdata 2437 2437 0 scsi_sense_cache 544 544 128 32 1 : tunables 0 0 0 : slabdata 17 17 0 bio-128 459 567 192 21 1 : tunables 0 0 0 : slabdata 27 27 0 fsverity_info 0 0 256 32 2 : tunables 0 0 0 : slabdata 0 0 0 fscrypt_info 0 0 128 32 1 : tunables 0 0 0 : slabdata 0 0 0 MPTCPv6 0 0 2048 16 8 : tunables 0 0 0 : slabdata 0 0 0 ip6-frags 264 264 184 22 1 : tunables 0 0 0 : slabdata 12 12 0 PINGv6 0 0 1216 26 8 : tunables 0 0 0 : slabdata 0 0 0 RAWv6 234 234 1216 26 8 : tunables 0 0 0 : slabdata 9 9 0 UDPv6 360 360 1344 24 8 : tunables 0 0 0 : slabdata 15 15 0 tw_sock_TCPv6 957 1089 248 33 2 : tunables 0 0 0 : slabdata 33 33 0 request_sock_TCPv6 598 702 312 26 2 : tunables 0 0 0 : slabdata 27 27 0 TCPv6 985 1105 2432 13 8 : tunables 0 0 0 : slabdata 85 85 0 mqueue_inode_cache 272 272 960 34 8 : tunables 0 0 0 : slabdata 8 8 0 kioctx 28 28 576 28 4 : tunables 0 0 0 : slabdata 1 1 0 userfaultfd_ctx_cache 0 0 192 21 1 : tunables 0 0 0 : slabdata 0 0 0 dnotify_struct 0 0 32 128 1 : tunables 0 0 0 : slabdata 0 0 0 pid_namespace 240 240 136 30 1 : tunables 0 0 0 : slabdata 8 8 0 ip4-frags 140 140 200 20 1 : tunables 0 0 0 : slabdata 7 7 0 MPTCP 0 0 1920 17 8 : tunables 0 0 0 : slabdata 0 0 0 request_sock_subflow 0 0 384 21 2 : tunables 0 0 0 : slabdata 0 0 0 xfrm_dst_cache 9128 14000 320 25 2 : tunables 0 0 0 : slabdata 560 560 0 xfrm_state 0 0 768 21 4 : tunables 0 0 0 : slabdata 0 0 0 ip_fib_trie 680 680 48 85 1 : tunables 0 0 0 : slabdata 8 8 0 ip_fib_alias 584 584 56 73 1 : tunables 0 0 0 : slabdata 8 8 0 PING 624 672 1024 32 8 : tunables 0 0 0 : slabdata 21 21 0 RAW 96 96 1024 32 8 : tunables 0 0 0 : slabdata 3 3 0 tw_sock_TCP 1452 1452 248 33 2 : tunables 0 0 0 : slabdata 44 44 0 request_sock_TCP 676 676 312 26 2 : tunables 0 0 0 : slabdata 26 26 0 TCP 2064 2828 2240 14 8 : tunables 0 0 0 : slabdata 202 202 0 hugetlbfs_inode_cache 72 72 664 24 4 : tunables 0 0 0 : slabdata 3 3 0 dquot 0 0 256 32 2 : tunables 0 0 0 : slabdata 0 0 0 bio-256 75 75 320 25 2 : tunables 0 0 0 : slabdata 3 3 0 ep_head 4551 8960 16 256 1 : tunables 0 0 0 : slabdata 35 35 0 dax_cache 39 39 832 39 8 : tunables 0 0 0 : slabdata 1 1 0 request_queue_srcu 0 0 1328 24 8 : tunables 0 0 0 : slabdata 0 0 0 request_queue 175 350 936 35 8 : tunables 0 0 0 : slabdata 10 10 0 bio-192 896 896 256 32 2 : tunables 0 0 0 : slabdata 28 28 0 biovec-max 854 984 4096 8 8 : tunables 0 0 0 : slabdata 123 123 0 biovec-128 384 384 2048 16 8 : tunables 0 0 0 : slabdata 24 24 0 biovec-64 546 672 1024 32 8 : tunables 0 0 0 : slabdata 21 21 0 khugepaged_mm_slot 1660 2088 112 36 1 : tunables 0 0 0 : slabdata 58 58 0 user_namespace 78 78 624 26 4 : tunables 0 0 0 : slabdata 3 3 0 dmaengine-unmap-256 15 15 2112 15 8 : tunables 0 0 0 : slabdata 1 1 0 dmaengine-unmap-128 30 30 1088 30 8 : tunables 0 0 0 : slabdata 1 1 0 sock_inode_cache 3536 5655 832 39 8 : tunables 0 0 0 : slabdata 145 145 0 skbuff_ext_cache 1525 1659 192 21 1 : tunables 0 0 0 : slabdata 79 79 0 skbuff_fclone_cache 758 1088 512 32 4 : tunables 0 0 0 : slabdata 34 34 0 skbuff_head_cache 922 1216 256 32 2 : tunables 0 0 0 : slabdata 38 38 0 file_lock_cache 296 296 216 37 2 : tunables 0 0 0 : slabdata 8 8 0 buffer_head 1365 1521 104 39 1 : tunables 0 0 0 : slabdata 39 39 0 taskstats 312 312 416 39 4 : tunables 0 0 0 : slabdata 8 8 0 proc_dir_entry 1827 1827 192 21 1 : tunables 0 0 0 : slabdata 87 87 0 pde_opener 816 816 40 102 1 : tunables 0 0 0 : slabdata 8 8 0 proc_inode_cache 3065 3864 712 23 4 : tunables 0 0 0 : slabdata 168 168 0 seq_file 272 272 120 34 1 : tunables 0 0 0 : slabdata 8 8 0 sigqueue 867 867 80 51 1 : tunables 0 0 0 : slabdata 17 17 0 bdev_cache 60 60 1600 20 8 : tunables 0 0 0 : slabdata 3 3 0 shmem_inode_cache 2093 2120 784 20 4 : tunables 0 0 0 : slabdata 106 106 0 kernfs_node_cache 41300 43136 128 32 1 : tunables 0 0 0 : slabdata 1348 1348 0 mnt_cache 2102 2300 320 25 2 : tunables 0 0 0 : slabdata 92 92 0 filp 47201 52832 256 32 2 : tunables 0 0 0 : slabdata 1651 1651 0 inode_cache 13104 14875 640 25 4 : tunables 0 0 0 : slabdata 595 595 0 dentry 55285 81039 192 21 1 : tunables 0 0 0 : slabdata 3859 3859 0 names_cache 130 146 4096 8 8 : tunables 0 0 0 : slabdata 20 20 0 net_namespace 56 56 4352 7 8 : tunables 0 0 0 : slabdata 8 8 0 iint_cache 0 0 120 34 1 : tunables 0 0 0 : slabdata 0 0 0 lsm_inode_cache 63560 167680 32 128 1 : tunables 0 0 0 : slabdata 1310 1310 0 lsm_file_cache 47430 61540 24 170 1 : tunables 0 0 0 : slabdata 362 362 0 uts_namespace 296 296 432 37 4 : tunables 0 0 0 : slabdata 8 8 0 nsproxy 448 448 72 56 1 : tunables 0 0 0 : slabdata 8 8 0 vm_area_struct 201606 216140 200 20 1 : tunables 0 0 0 : slabdata 10807 10807 0 mm_struct 593 660 1088 30 8 : tunables 0 0 0 : slabdata 22 22 0 files_cache 586 690 704 23 4 : tunables 0 0 0 : slabdata 30 30 0 signal_cache 677 896 1152 28 8 : tunables 0 0 0 : slabdata 32 32 0 sighand_cache 555 600 2112 15 8 : tunables 0 0 0 : slabdata 40 40 0 task_struct 1297 1365 6528 5 8 : tunables 0 0 0 : slabdata 273 273 0 cred_jar 1433 1638 192 21 1 : tunables 0 0 0 : slabdata 78 78 0 anon_vma_chain 130566 145920 64 64 1 : tunables 0 0 0 : slabdata 2280 2280 0 anon_vma 50209 54366 104 39 1 : tunables 0 0 0 : slabdata 1394 1394 0 pid 5785 8896 128 32 1 : tunables 0 0 0 : slabdata 278 278 0 Acpi-Operand 1008 1008 72 56 1 : tunables 0 0 0 : slabdata 18 18 0 Acpi-Parse 730 730 56 73 1 : tunables 0 0 0 : slabdata 10 10 0 Acpi-State 67424 164628 80 51 1 : tunables 0 0 0 : slabdata 3228 3228 0 numa_policy 240 240 272 30 2 : tunables 0 0 0 : slabdata 8 8 0 perf_event 26 26 1232 26 8 : tunables 0 0 0 : slabdata 1 1 0 trace_event_file 2484 2484 88 46 1 : tunables 0 0 0 : slabdata 54 54 0 ftrace_event_field 4250 4250 48 85 1 : tunables 0 0 0 : slabdata 50 50 0 pool_workqueue 10489 17344 256 32 2 : tunables 0 0 0 : slabdata 542 542 0 radix_tree_node 263371 302596 584 28 4 : tunables 0 0 0 : slabdata 10807 10807 0 task_group 725 750 640 25 4 : tunables 0 0 0 : slabdata 30 30 0 vmap_area 11212341 11212416 64 64 1 : tunables 0 0 0 : slabdata 175194 175194 0 dma-kmalloc-8k 0 0 8192 4 8 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-4k 0 0 4096 8 8 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-2k 0 0 2048 16 8 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-1k 0 0 1024 32 8 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-512 0 0 512 32 4 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-256 0 0 256 32 2 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-192 0 0 192 21 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-128 0 0 128 32 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-96 0 0 96 42 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-64 0 0 64 64 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-32 0 0 32 128 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-16 0 0 16 256 1 : tunables 0 0 0 : slabdata 0 0 0 dma-kmalloc-8 0 0 8 512 1 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-8k 0 0 8192 4 8 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-4k 0 0 4096 8 8 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-2k 0 0 2048 16 8 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-1k 0 0 1024 32 8 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-512 0 0 512 32 4 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-256 0 0 256 32 2 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-192 212 315 192 21 1 : tunables 0 0 0 : slabdata 15 15 0 kmalloc-rcl-128 1120 1120 128 32 1 : tunables 0 0 0 : slabdata 35 35 0 kmalloc-rcl-96 3148 4116 96 42 1 : tunables 0 0 0 : slabdata 98 98 0 kmalloc-rcl-64 8128 12416 64 64 1 : tunables 0 0 0 : slabdata 194 194 0 kmalloc-rcl-32 0 0 32 128 1 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-16 0 0 16 256 1 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-rcl-8 0 0 8 512 1 : tunables 0 0 0 : slabdata 0 0 0 kmalloc-cg-8k 84 84 8192 4 8 : tunables 0 0 0 : slabdata 21 21 0 kmalloc-cg-4k 437 456 4096 8 8 : tunables 0 0 0 : slabdata 57 57 0 kmalloc-cg-2k 578 624 2048 16 8 : tunables 0 0 0 : slabdata 39 39 0 kmalloc-cg-1k 1281 1728 1024 32 8 : tunables 0 0 0 : slabdata 54 54 0 kmalloc-cg-512 878 1024 512 32 4 : tunables 0 0 0 : slabdata 32 32 0 kmalloc-cg-256 640 640 256 32 2 : tunables 0 0 0 : slabdata 20 20 0 kmalloc-cg-192 1451 1491 192 21 1 : tunables 0 0 0 : slabdata 71 71 0 kmalloc-cg-128 1280 1280 128 32 1 : tunables 0 0 0 : slabdata 40 40 0 kmalloc-cg-96 336 336 96 42 1 : tunables 0 0 0 : slabdata 8 8 0 kmalloc-cg-64 1813 1984 64 64 1 : tunables 0 0 0 : slabdata 31 31 0 kmalloc-cg-32 1920 1920 32 128 1 : tunables 0 0 0 : slabdata 15 15 0 kmalloc-cg-16 3072 3072 16 256 1 : tunables 0 0 0 : slabdata 12 12 0 kmalloc-cg-8 4096 4096 8 512 1 : tunables 0 0 0 : slabdata 8 8 0 kmalloc-8k 284 288 8192 4 8 : tunables 0 0 0 : slabdata 72 72 0 kmalloc-4k 552 584 4096 8 8 : tunables 0 0 0 : slabdata 73 73 0 kmalloc-2k 1552 1744 2048 16 8 : tunables 0 0 0 : slabdata 109 109 0 kmalloc-1k 2204 3040 1024 32 8 : tunables 0 0 0 : slabdata 95 95 0 kmalloc-512 11804 13472 512 32 4 : tunables 0 0 0 : slabdata 424 424 0 kmalloc-256 17720 27936 256 32 2 : tunables 0 0 0 : slabdata 873 873 0 kmalloc-192 86424 92967 192 21 1 : tunables 0 0 0 : slabdata 4427 4427 0 kmalloc-128 2267 3168 128 32 1 : tunables 0 0 0 : slabdata 99 99 0 kmalloc-96 2312 2730 96 42 1 : tunables 0 0 0 : slabdata 65 65 0 kmalloc-64 14507 27840 64 64 1 : tunables 0 0 0 : slabdata 435 435 0 kmalloc-32 12125 32512 32 128 1 : tunables 0 0 0 : slabdata 254 254 0 kmalloc-16 16536 20480 16 256 1 : tunables 0 0 0 : slabdata 80 80 0 kmalloc-8 9792 10240 8 512 1 : tunables 0 0 0 : slabdata 20 20 0 kmem_cache_node 448 448 64 64 1 : tunables 0 0 0 : slabdata 7 7 0 kmem_cache 288 288 256 32 2 : tunables 0 0 0 : slabdata 9 9 0
``` ``` # slabtop -o Active / Total Objects (% used) : 13532483 / 14216137 (95.2%) Active / Total Slabs (% used) : 272267 / 272267 (100.0%) Active / Total Caches (% used) : 123 / 160 (76.9%) Active / Total Size (% used) : 1228026.31K / 1332345.63K (92.2%) Minimum / Average / Maximum Object : 0.01K / 0.09K / 8.00K OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 11194816 11169612 99% 0.06K 174919 64 699676K vmap_area 1232168 935522 75% 0.14K 44006 28 176024K btrfs_extent_map 302596 264634 87% 0.57K 10807 28 172912K radix_tree_node 216140 204937 94% 0.20K 10807 20 43228K vm_area_struct 175491 126210 71% 0.08K 3441 51 13764K Acpi-State 167808 63869 38% 0.03K 1311 128 5244K lsm_inode_cache 145920 131973 90% 0.06K 2280 64 9120K anon_vma_chain 92967 86466 93% 0.19K 4427 21 17708K kmalloc-192 81207 63411 78% 0.19K 3867 21 15468K dentry 61540 47280 76% 0.02K 362 170 1448K lsm_file_cache 54015 50012 92% 0.10K 1385 39 5540K anon_vma 52832 46732 88% 0.25K 1651 32 13208K filp 43136 41300 95% 0.12K 1348 32 5392K kernfs_node_cache 40431 40287 99% 1.17K 2437 27 77984K btrfs_inode 32994 26471 80% 0.10K 846 39 3384K btrfs_free_space 32512 12127 37% 0.03K 254 128 1016K kmalloc-32 27936 17779 63% 0.25K 873 32 6984K kmalloc-256 27840 14278 51% 0.06K 435 64 1740K kmalloc-64 20480 16430 80% 0.02K 80 256 320K kmalloc-16 17344 11174 64% 0.25K 542 32 4336K pool_workqueue 14875 13104 88% 0.62K 595 25 9520K inode_cache 14000 9715 69% 0.31K 560 25 4480K xfrm_dst_cache 13472 11725 87% 0.50K 424 32 6784K kmalloc-512 12704 6983 54% 0.25K 397 32 3176K nf_conntrack 12608 12415 98% 0.06K 197 64 788K kmalloc-rcl-64 10240 9792 95% 0.01K 20 512 80K kmalloc-8 8960 4567 50% 0.02K 35 256 140K ep_head 8896 6097 68% 0.12K 278 32 1112K pid 5655 3514 62% 0.81K 145 39 4640K sock_inode_cache 4250 4250 100% 0.05K 50 85 200K ftrace_event_field 4116 4116 100% 0.09K 98 42 392K kmalloc-rcl-96 4096 4096 100% 0.01K 8 512 32K kmalloc-cg-8 3864 3087 79% 0.70K 168 23 2688K proc_inode_cache 3828 1952 50% 0.71K 174 22 2784K ovl_inode 3168 2397 75% 0.12K 99 32 396K kmalloc-128 3072 3072 100% 0.02K 12 256 48K kmalloc-cg-16 3040 2086 68% 1.00K 95 32 3040K kmalloc-1k 2828 2072 73% 2.19K 202 14 6464K TCP 2730 2232 81% 0.09K 65 42 260K kmalloc-96 2484 2484 100% 0.09K 54 46 216K trace_event_file 2300 2102 91% 0.31K 92 25 736K mnt_cache 2120 2093 98% 0.77K 106 20 1696K shmem_inode_cache 2052 1452 70% 0.11K 57 36 228K khugepaged_mm_slot 1984 1813 91% 0.06K 31 64 124K kmalloc-cg-64 1920 1920 100% 0.03K 15 128 60K kmalloc-cg-32 1827 1827 100% 0.19K 87 21 348K proc_dir_entry 1744 1542 88% 2.00K 109 16 3488K kmalloc-2k 1728 1281 74% 1.00K 54 32 1728K kmalloc-cg-1k 1659 1541 92% 0.19K 79 21 316K skbuff_ext_cache 1638 1435 87% 0.19K 78 21 312K cred_jar 1521 1365 89% 0.10K 39 39 156K buffer_head 1491 1451 97% 0.19K 71 21 284K kmalloc-cg-192 1419 1419 100% 0.24K 43 33 344K tw_sock_TCP 1365 1300 95% 6.38K 273 5 8736K task_struct 1280 1280 100% 0.12K 40 32 160K kmalloc-cg-128 1280 905 70% 0.25K 40 32 320K skbuff_head_cache 1120 1120 100% 0.12K 35 32 140K kmalloc-rcl-128 1105 908 82% 2.38K 85 13 2720K TCPv6 1089 957 87% 0.24K 33 33 264K tw_sock_TCPv6 1024 878 85% 0.50K 32 32 512K kmalloc-cg-512 1008 1008 100% 0.07K 18 56 72K Acpi-Operand 992 869 87% 4.00K 124 8 3968K biovec-max 928 928 100% 0.50K 29 32 464K skbuff_fclone_cache 896 702 78% 1.12K 32 28 1024K signal_cache 867 867 100% 0.08K 17 51 68K sigqueue 864 736 85% 0.25K 27 32 216K bio-192 816 816 100% 0.04K 8 102 32K pde_opener 750 725 96% 0.62K 30 25 480K task_group 730 730 100% 0.05K 10 73 40K Acpi-Parse703 518 73% 0.43K 19 37 304K btrfs_ordered_extent
702 598 85% 0.30K 27 26 216K request_sock_TCPv6 690 586 84% 0.69K 30 23 480K files_cache 680 680 100% 0.05K 8 85 32K ip_fib_trie 676 573 84% 0.30K 26 26 208K request_sock_TCP 672 578 86% 1.00K 21 32 672K biovec-64 672 624 92% 1.00K 21 32 672K PING 660 593 89% 1.06K 22 30 704K mm_struct 640 640 100% 0.25K 20 32 160K kmalloc-cg-256 624 578 92% 2.00K 39 16 1248K kmalloc-cg-2k 609 609 100% 0.38K 29 21 232K bio-344 600 551 91% 2.06K 40 15 1280K sighand_cache 584 552 94% 4.00K 73 8 2336K kmalloc-4k 584 584 100% 0.05K 8 73 32K ip_fib_alias 567 459 80% 0.19K 27 21 108K bio-128 544 544 100% 0.12K 17 32 68K scsi_sense_cache 456 434 95% 4.00K 57 8 1824K kmalloc-cg-4k 448 448 100% 0.06K 7 64 28K kmem_cache_node 448 448 100% 0.07K 8 56 32K nsproxy 384 336 87% 2.00K 24 16 768K biovec-128 360 360 100% 1.31K 15 24 480K UDPv6 350 175 50% 0.91K 10 35 320K request_queue 336 336 100% 0.09K 8 42 32K kmalloc-cg-96 315 212 67% 0.19K 15 21 60K kmalloc-rcl-192 312 312 100% 0.41K 8 39 128K taskstats 296 296 100% 0.42K 8 37 128K uts_namespace 296 296 100% 0.21K 8 37 64K file_lock_cache 288 288 100% 0.25K 9 32 72K kmem_cache 288 284 98% 8.00K 72 4 2304K kmalloc-8k 272 272 100% 0.12K 8 34 32K seq_file 272 272 100% 0.94K 8 34 256K mqueue_inode_cache 264 264 100% 0.18K 12 22 48K ip6-frags 240 240 100% 0.27K 8 30 64K numa_policy 240 240 100% 0.13K 8 30 32K pid_namespace 234 234 100% 1.19K 9 26 288K RAWv6 168 168 100% 1.50K 8 21 256K SCTPv6 146 130 89% 4.00K 20 8 640K names_cache 140 140 100% 0.20K 7 20 28K ip4-frags 96 96 100% 1.00K 3 32 96K RAW 84 84 100% 8.00K 21 4 672K kmalloc-cg-8k 78 78 100% 0.61K 3 26 48K user_namespace 75 75 100% 0.31K 3 25 24K bio-25672 72 100% 0.65K 3 24 48K hugetlbfs_inode_cache
69 69 100% 1.38K 3 23 96K SCTP 60 60 100% 1.56K 3 20 96K bdev_cache 56 56 100% 4.25K 8 7 256K net_namespace 39 39 100% 0.81K 1 39 32K dax_cache 32 32 100% 0.25K 1 32 8K bio-224 30 30 100% 1.06K 1 30 32K dmaengine-unmap-128 28 28 100% 0.56K 1 28 16K kioctx 26 26 100% 1.20K 1 26 32K perf_event 21 21 100% 1.52K 1 21 32K wg_peer 20 20 100% 0.77K 1 20 16K fat_inode_cache 15 15 100% 2.06K 1 15 32K dmaengine-unmap-256 0 0 0% 0.01K 0 512 0K kmalloc-rcl-8 0 0 0% 0.02K 0 256 0K kmalloc-rcl-16 0 0 0% 0.03K 0 128 0K kmalloc-rcl-32 0 0 0% 0.25K 0 32 0K kmalloc-rcl-256 0 0 0% 0.50K 0 32 0K kmalloc-rcl-512 0 0 0% 1.00K 0 32 0K kmalloc-rcl-1k 0 0 0% 2.00K 0 16 0K kmalloc-rcl-2k 0 0 0% 4.00K 0 8 0K kmalloc-rcl-4k 0 0 0% 8.00K 0 4 0K kmalloc-rcl-8k 0 0 0% 0.01K 0 512 0K dma-kmalloc-8 0 0 0% 0.02K 0 256 0K dma-kmalloc-16 0 0 0% 0.03K 0 128 0K dma-kmalloc-32 0 0 0% 0.06K 0 64 0K dma-kmalloc-64 0 0 0% 0.09K 0 42 0K dma-kmalloc-96 0 0 0% 0.12K 0 32 0K dma-kmalloc-128 0 0 0% 0.19K 0 21 0K dma-kmalloc-192 0 0 0% 0.25K 0 32 0K dma-kmalloc-256 0 0 0% 0.50K 0 32 0K dma-kmalloc-512 0 0 0% 1.00K 0 32 0K dma-kmalloc-1k 0 0 0% 2.00K 0 16 0K dma-kmalloc-2k 0 0 0% 4.00K 0 8 0K dma-kmalloc-4k 0 0 0% 8.00K 0 4 0K dma-kmalloc-8k 0 0 0% 0.12K 0 34 0K iint_cache 0 0 0% 1.30K 0 24 0K request_queue_srcu 0 0 0% 0.25K 0 32 0K dquot 0 0 0% 0.75K 0 21 0K xfrm_state0 0 0% 0.38K 0 21 0K request_sock_subflow
0 0 0% 1.88K 0 17 0K MPTCP 0 0 0% 0.03K 0 128 0K dnotify_struct0 0 0% 0.19K 0 21 0K userfaultfd_ctx_cache
0 0 0% 1.19K 0 26 0K PINGv6 0 0 0% 2.00K 0 16 0K MPTCPv6 0 0 0% 0.12K 0 32 0K fscrypt_info 0 0 0% 0.25K 0 32 0K fsverity_info 0 0 0% 0.81K 0 39 0K fuse_inode 0 0 0% 0.15K 0 26 0K fuse_request 0 0 0% 0.04K 0 102 0K fat_cache ``` ``` # lsmod Module Size Used by tcp_diag 16384 0 inet_diag 28672 1 tcp_diag sctp 446464 28 ipt_REJECT 16384 0 xt_multiport 20480 1 xt_nat 16384 64 xt_tcpudp 20480 84 veth 36864 0 xt_conntrack 16384 12 xt_MASQUERADE 20480 23 nf_conntrack_netlink 57344 0 xfrm_user 49152 1 xfrm_algo 16384 1 xfrm_user xt_addrtype 16384 2 nft_compat 20480 186 br_netfilter 36864 0 bridge 319488 1 br_netfilter stp 16384 1 bridge llc 16384 2 bridge,stp wireguard 94208 0 curve25519_x86_64 36864 1 wireguard libchacha20poly1305 16384 1 wireguard chacha_x86_64 28672 1 libchacha20poly1305 poly1305_x86_64 28672 1 libchacha20poly1305 libcurve25519_generic 49152 2 curve25519_x86_64,wireguard libchacha 16384 1 chacha_x86_64 ip6_udp_tunnel 16384 2 wireguard,sctp udp_tunnel 24576 2 wireguard,sctp overlay 155648 14 nft_objref 16384 1 nf_conntrack_netbios_ns 16384 1 nf_conntrack_broadcast 16384 1 nf_conntrack_netbios_ns nft_fib_inet 16384 1 nft_fib_ipv4 16384 1 nft_fib_inet nft_fib_ipv6 16384 1 nft_fib_inet nft_fib 16384 3 nft_fib_ipv6,nft_fib_ipv4,nft_fib_inet nft_reject_inet 16384 7 nf_reject_ipv4 16384 2 nft_reject_inet,ipt_REJECT nf_reject_ipv6 24576 1 nft_reject_inet nft_reject 16384 1 nft_reject_inet nft_ct 24576 39 nft_chain_nat 16384 34 nf_nat 57344 3 xt_nat,nft_chain_nat,xt_MASQUERADEnf_conntrack 188416 8 xt_conntrack,nf_nat,nft_ct,nf_conntrack_netbios_ns,xt_nat,nf_conntrack_broadcast,nf_conntrack_netlink,xt_MASQUERADE
nf_defrag_ipv6 24576 1 nf_conntrack nf_defrag_ipv4 16384 1 nf_conntracknf_tables 282624 2145 nft_ct,nft_compat,nft_reject_inet,nft_fib_ipv6,nft_objref,nft_fib_ipv4,nft_chain_nat,nft_reject,nft_fib,nft_fib_inet
nfnetlink 20480 5 nft_compat,nf_conntrack_netlink,nf_tables nls_ascii 16384 1 nls_cp437 20480 1 vfat 24576 1 fat 86016 1 vfat intel_rapl_msr 20480 0 intel_rapl_common 28672 1 intel_rapl_msr bochs 16384 0 evdev 28672 2 drm_vram_helper 24576 1 bochs serio_raw 20480 0 pcspkr 16384 0 joydev 28672 0 drm_ttm_helper 16384 2 bochs,drm_vram_helper virtio_console 40960 1 virtio_balloon 24576 0 sg 40960 0 ttm 94208 2 drm_vram_helper,drm_ttm_helper qemu_fw_cfg 20480 0 drm_kms_helper 204800 4 bochs,drm_vram_helper button 24576 0 tcp_bbr 20480 2570 sch_fq 20480 3drm 606208 6 drm_kms_helper,bochs,drm_vram_helper,drm_ttm_helper,ttm
fuse 172032 1 configfs 57344 1 ip_tables 36864 0x_tables 61440 9 xt_conntrack,nft_compat,xt_multiport,xt_tcpudp,xt_addrtype,xt_nat,ipt_REJECT,ip_tables,xt_MASQUERADE
autofs4 53248 2 btrfs 1740800 1 blake2b_generic 20480 0 raid10 65536 0 raid456 180224 0 async_raid6_recov 24576 1 raid456 async_memcpy 20480 2 raid456,async_raid6_recov async_pq 20480 2 raid456,async_raid6_recov async_xor 20480 3 async_pq,raid456,async_raid6_recovasync_tx 20480 5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor 24576 2 async_xor,btrfs raid6_pq 122880 4 async_pq,btrfs,raid456,async_raid6_recovlibcrc32c 16384 6 nf_conntrack,nf_nat,btrfs,nf_tables,raid456,sctp
crc32c_generic 16384 0 raid1 49152 0 raid0 24576 0 multipath 20480 0 linear 20480 0 md_mod 192512 6 raid1,raid10,raid0,linear,raid456,multipath hid_generic 16384 0 usbhid 65536 0 hid 159744 2 usbhid,hid_generic sd_mod 65536 4 t10_pi 16384 1 sd_mod crc64_rocksoft_generic 16384 1 crc64_rocksoft 20480 1 t10_pi crc_t10dif 20480 1 t10_pi crct10dif_generic 16384 0 crc64 20480 2 crc64_rocksoft,crc64_rocksoft_generic crct10dif_pclmul 16384 1crct10dif_common 16384 3 crct10dif_generic,crc_t10dif,crct10dif_pclmul
crc32_pclmul 16384 0 sr_mod 28672 0 crc32c_intel 24576 2 virtio_net 69632 0 cdrom 77824 1 sr_mod net_failover 24576 1 virtio_net virtio_scsi 24576 3 failover 16384 1 net_failover ata_generic 16384 0 ghash_clmulni_intel 16384 0 xhci_pci 20480 0 ata_piix 45056 0 xhci_hcd 315392 1 xhci_pci libata 397312 2 ata_piix,ata_generic aesni_intel 393216 0 usbcore 344064 3 xhci_hcd,usbhid,xhci_pci crypto_simd 16384 1 aesni_intel psmouse 184320 0 cryptd 28672 2 crypto_simd,ghash_clmulni_intel scsi_mod 282624 5 virtio_scsi,sd_mod,libata,sg,sr_mod virtio_pci 24576 0 virtio_pci_legacy_dev 16384 1 virtio_pci virtio_pci_modern_dev 20480 1 virtio_pcivirtio 20480 5 virtio_console,virtio_balloon,virtio_scsi,virtio_pci,virtio_net
usb_common 16384 2 xhci_hcd,usbcorevirtio_ring 45056 5 virtio_console,virtio_balloon,virtio_scsi,virtio_pci,virtio_net
floppy 86016 0 i2c_piix4 28672 0 scsi_common 16384 4 scsi_mod,libata,sg,sr_mod z3fold 32768 1 zstd 16384 16 zstd_compress 311296 2 btrfs,zstd ``` Try to drop cache ``` sync && echo 3 > /proc/sys/vm/drop_caches ``` but it doesn't help. ``` # cat /etc/fstab # /dev/sda1UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx / btrfs rw,noatime,compress=zstd:3,ssd,space_cache=v2,subvolid=256,subvol=/@root 0 0
# /boot/efi UUID=xxxx-xxxx /boot/efi vfat umask=0077 0 1 /dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0 # swapUUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx none swap defaults 0 0 /swapfilevolume/swapfile none swap defaults 0 0
``` Thank you.
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