我需要帮助来了解这个 slab 不可回收内存使用情况是什么，我知道这与缓存有关。
这是 /proc/meminfo 的输出
cat /proc/meminfo
MemTotal: 23373884 kB
MemFree: 1547460 kB
MemAvailable: 1976756 kB
Buffers: 65252 kB
Cached: 683132 kB
SwapCached: 550824 kB
Active: 5387748 kB
Inactive: 1211904 kB
Active(anon): 5046500 kB
Inactive(anon): 883848 kB
Active(file): 341248 kB
Inactive(file): 328056 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 49807356 kB
SwapFree: 48152620 kB
Dirty: 300 kB
Writeback: 0 kB
AnonPages: 5782956 kB
Mapped: 83180 kB
Shmem: 79064 kB
Slab: 14816228 kB
SReclaimable: 122592 kB
SUnreclaim: 14693636 kB
KernelStack: 10112 kB
PageTables: 23640 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 61494296 kB
Committed_AS: 7223420 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 0 kB
VmallocChunk: 0 kB
HardwareCorrupted: 0 kB
AnonHugePages: 3080192 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 4161408 kB
DirectMap2M: 19955712 kB
DirectMap1G: 2097152 kB
板顶产量
Active / Total Objects (% used) : 462600052 / 462704921 (100.0%)
Active / Total Slabs (% used) : 3642734 / 3642734 (100.0%)
Active / Total Caches (% used) : 100 / 129 (77.5%)
Active / Total Size (% used) : 14790386.41K / 14811378.02K (99.9%)
Minimum / Average / Maximum Object : 0.01K / 0.03K / 8.00K
OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME
461003776 461003776 100% 0.03K 3601592 128 14406368K avc_xperms_data
212224 209627 98% 0.06K 3316 64 13264K anon_vma_chain
150528 138072 91% 0.01K 294 512 1176K kmalloc-8
136758 134952 98% 0.09K 2973 46 11892K anon_vma
131808 131700 99% 0.50K 4119 32 65904K kmalloc-512
123765 121256 97% 0.21K 3345 37 26760K vm_area_struct
100716 86900 86% 0.19K 4796 21 19184K dentry
91136 83900 92% 0.02K 356 256 1424K kmalloc-16
88064 85602 97% 0.03K 688 128 2752K kmalloc-32
56520 56520 100% 0.13K 1884 30 7536K kernfs_node_cache
56384 32811 58% 0.12K 1762 32 7048K pid
53760 46542 86% 0.06K 840 64 3360K kmalloc-64
40992 34741 84% 0.57K 1464 28 23424K radix_tree_node
37464 26514 70% 0.09K 892 42 3568K kmalloc-96
36834 36368 98% 0.19K 1754 21 7016K cred_jar
36540 35688 97% 0.66K 1524 24 24384K proc_inode_cache
23062 22296 96% 0.59K 887 26 14192K inode_cache
23010 20591 89% 0.10K 590 39 2360K buffer_head
21828 21828 100% 0.04K 214 102 856K Acpi-Namespace
21213 18227 85% 1.06K 717 30 22944K ext4_inode_cache
18208 17665 97% 0.12K 569 32 2276K kmalloc-128
17646 17646 100% 0.08K 346 51 1384K task_delay_info
15936 15838 99% 0.25K 498 32 3984K skbuff_head_cache
15744 15332 97% 1.00K 492 32 15744K kmalloc-1024
13566 13306 98% 0.04K 133 102 532K ext4_extent_status
13179 13136 99% 0.69K 573 23 9168K sock_inode_cache
12580 12580 100% 0.05K 148 85 592K ftrace_event_field
10860 10860 100% 1.06K 362 30 11584K signal_cache
10731 9611 89% 0.05K 147 73 588K Acpi-Parse
10290 10116 98% 0.19K 490 21 1960K kmalloc-192
8608 8505 98% 2.00K 538 16 17216K kmalloc-2048
7095 7095 100% 0.24K 215 33 1720K tw_sock_TCPv6
6944 6944 100% 0.07K 124 56 496K Acpi-Operand
6854 6854 100% 0.69K 298 23 4768K files_cache
6576 4818 73% 0.25K 212 32 1696K pool_workqueue
6080 6080 100% 0.06K 95 64 380K ext4_io_end
5882 5882 100% 0.12K 173 34 692K jbd2_journal_head
5625 5408 96% 2.06K 375 15 12000K sighand_cache
5612 5512 98% 0.70K 244 23 3904K shmem_inode_cache
4590 4590 100% 2.12K 306 15 9792K mm_struct
4227 3915 92% 1.06K 158 30 5056K nfs_inode_cache
4032 4032 100% 0.06K 63 64 252K dmaengine-unmap-2
3685 3377 91% 5.94K 737 5 23584K task_struct
3431 3431 100% 0.05K 47 73 188K mbcache
3072 3072 100% 0.02K 12 256 48K selinux_file_security
2496 2496 100% 0.12K 78 32 312K scsi_sense_cache
2331 2331 100% 0.19K 111 21 444K dmaengine-unmap-16
2040 2040 100% 0.02K 12 170 48K fsnotify_mark_connector
1920 1302 67% 0.12K 60 32 240K dtrace_task_cache
slabtop 显示 avc_xperms_data 正在使用 14gb 内存，在网上搜索后我发现这与 selinux 有关，但该服务器上未启用/激活 selinux。有什么帮助吗？
根据要求：sestatus
sestatus
SELinux status: disabled
AVC状态
timeout 10 avcstat 1
ERROR: open: '(null)/avc/cache_stats': No such file or directory