请帮我分析一下OOM原因，配置都是根据官方配置的

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【DM版本】: 8.0
【操作系统】：UOS
【CPU】: 鲲鹏
内存： 16GB
【问题描述】*：根据官方调优调大内存，结果OOM了，进程被杀死
这是错误日志

[4268924.357883] 0 pages hwpoisoned
[4268924.357884] Tasks state (memory values in pages):
[4268924.357885] [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name
[4268924.357893] [    452]     0   452     1815      733   393216        0             0 systemd-journal
[4268924.357895] [    460]     0   460      336       61   393216        0         -1000 systemd-udevd
[4268924.357897] [    609]     0   609     3384      240   458752        0         -1000 multipathd
[4268924.357900] [    641]     0   641      132       74   393216        0             0 haveged
[4268924.357901] [    642]   100   642     1412       51   393216        0             0 systemd-timesyn
[4268924.357903] [    645]     0   645     3458       58   327680        0             0 rsyslogd
[4268924.357904] [    646]     0   646      224       45   327680        0             0 cron
[4268924.357906] [    647]     0   647       75       17   393216        0             0 alsactl
[4268924.357907] [    648]     0   648    21187     1063   655360        0             0 360safed
[4268924.357909] [    649]     0   649     6311      209   458752        0             0 udisksd
[4268924.357910] [    650]   104   650      140       80   327680        0          -900 dbus-daemon
[4268924.357912] [    653]   115   653      105       54   327680        0             0 avahi-daemon
[4268924.357913] [    656]     0   656      210       51   393216        0             0 wpa_supplicant
[4268924.357914] [    657]     0   657      199        5   327680        0             0 cat
[4268924.357916] [    658]     0   658    27671       90   655360        0             0 dde-system-daem
[4268924.357917] [    660]     0   660      199        5   393216        0             0 cat
[4268924.357919] [    666]     0   666      260       49   393216        0             0 systemd-logind
[4268924.357921] [    669]     0   669     4966      110   393216        0             0 ModemManager
[4268924.357922] [    671]     0   671     3859       55   458752        0             0 accounts-daemon
[4268924.357924] [    673]   115   673      105       22   327680        0             0 avahi-daemon
[4268924.357926] [    684]     0   684    22523        0   655360        0          -900 deepin-sync-hel
[4268924.357927] [    688]     0   688     3729      115   458752        0             0 polkitd
[4268924.357929] [    699]     0   699     7792      116   458752        0          -900 backlight_helpe
[4268924.357931] [    783]     0   783     9660      147   458752        0             0 NetworkManager
[4268924.357932] [    839]     0   839      155       57   327680        0             0 dhclient
[4268924.357933] [    898]     0   898     9670      167   393216        0             0 uos-license-age
[4268924.357935] [    914]     0   914      209       75   327680        0         -1000 sshd
[4268924.357936] [    915]     0   915     3705       80   393216        0             0 lightdm
[4268924.357938] [    936]     0   936      106       42   393216        0             0 vm-agent
[4268924.357940] [    938]     0   938    12199      401   458752        0             0 Xorg
[4268924.357941] [    982]     0   982     9588      203   458752        0             0 vm-agent
[4268924.357943] [   1148]     0  1148     2547       80   458752        0             0 lightdm
[4268924.357944] [   1149]     0  1149      199       29   393216        0             0 agetty
[4268924.357946] [   1153]   106  1153      294       98   393216        0             0 systemd
[4268924.357948] [   1154]   106  1154     2665       98   393216        0             0 (sd-pam)
[4268924.357949] [   1189]   106  1189      219        8   327680        0             0 deepin-greeter
[4268924.357951] [   1194]   106  1194      219        7   327680        0             0 lightdm-deepin-
[4268924.357952] [   1195]   106  1195     7763       94   458752        0             0 greeter-display
[4268924.357954] [   1196]   106  1196    18974     1544   524288        0             0 lightdm-deepin-
[4268924.357955] [   1204]   106  1204      119       66   393216        0             0 dbus-daemon
[4268924.357957] [   1209]   106  1209     3838       80   458752        0             0 gvfsd
[4268924.357959] [   1216]   106  1216     4950       47   393216        0             0 gvfsd-fuse
[4268924.357961] [   1230]     0  1230    25200      134   655360        0          -900 deepin-authenti
[4268924.357962] [   1247]   106  1247    15500      674   524288        0             0 onboard
[4268924.357964] [   1262]   106  1262     4856       76   458752        0             0 at-spi-bus-laun
[4268924.357965] [   1268]   106  1268      117       59   327680        0             0 dbus-daemon
[4268924.357967] [   1270]   106  1270     2539       81   458752        0             0 at-spi2-registr
[4268924.357969] [   1812]  1001  1812     3170      131   393216        0             0 dmap
[4268924.357970] [   5901]     0  5901     1561       70   327680        0             0 lightdm
[4268924.357972] [   7772]  1001  7772   447774   222935  3932160        0             0 dmserver
[4268924.357975] Out of memory: Kill process 7772 (dmserver) score 856 or sacrifice child
[4268924.358699] Killed process 7772 (dmserver) total-vm:28657536kB, anon-rss:14267840kB, file-rss:0kB, shmem-rss:0kB
[4268924.437496] oom_reaper: reaped process 7772 (dmserver), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

这是dm.ini配置

#memory pool and buffer
		MAX_OS_MEMORY                   = 90                   #Maximum Percent Of OS Memory
		MEMORY_POOL                     = 200                   #Memory Pool Size In Megabyte
		MEMORY_N_POOLS                  = 1                     #Number of Memory Pool 
		MEMORY_TARGET                   = 0                     #Memory Share Pool Target Size In Megabyte
		MEMORY_EXTENT_SIZE              = 1                     #Memory Extent Size In Megabyte
		MEMORY_LEAK_CHECK               = 0                     #Memory Pool Leak Checking Flag
		MEMORY_MAGIC_CHECK              = 2                     #Memory Pool Magic Checking Flag
		MEMORY_BAK_POOL                 = 4                     #Memory Backup Pool Size In Megabyte
		HUGE_MEMORY_PERCENTAGE          = 50                    #Maximum percent of HUGE buffer that can be allocated to work as common memory pool
		HUGE_BUFFER                     = 500                    #Initial Huge Buffer Size In Megabytes
		HUGE_BUFFER_POOLS               = 4                     #number of Huge buffer pools
		BUFFER                          = 10000                  #Initial System Buffer Size In Megabytes 
		BUFFER_POOLS                    = 200

dm.ini全配置

#memory pool and buffer
		MAX_OS_MEMORY                   = 90                   #Maximum Percent Of OS Memory
		MEMORY_POOL                     = 200                   #Memory Pool Size In Megabyte
		MEMORY_N_POOLS                  = 1                     #Number of Memory Pool 
		MEMORY_TARGET                   = 0                     #Memory Share Pool Target Size In Megabyte
		MEMORY_EXTENT_SIZE              = 1                     #Memory Extent Size In Megabyte
		MEMORY_LEAK_CHECK               = 0                     #Memory Pool Leak Checking Flag
		MEMORY_MAGIC_CHECK              = 2                     #Memory Pool Magic Checking Flag
		MEMORY_BAK_POOL                 = 4                     #Memory Backup Pool Size In Megabyte
		HUGE_MEMORY_PERCENTAGE          = 50                    #Maximum percent of HUGE buffer that can be allocated to work as common memory pool
		HUGE_BUFFER                     = 500                    #Initial Huge Buffer Size In Megabytes
		HUGE_BUFFER_POOLS               = 4                     #number of Huge buffer pools
		BUFFER                          = 10000                  #Initial System Buffer Size In Megabytes
                MAX_BUFFER                      = 10000    
		BUFFER_POOLS                    = 200                    #number of buffer pools
		FAST_POOL_PAGES                 = 3000                  #number of pages for fast pool
		FAST_ROLL_PAGES                 = 1000                  #number of pages for fast roll pages
		KEEP                            = 8                     #system KEEP buffer size in Megabytes
		RECYCLE                         = 64                    #system RECYCLE buffer size in Megabytes
		RECYCLE_POOLS                   = 19                    #Number of recycle buffer pools
		ROLLSEG                         = 1                     #system ROLLSEG buffer size in Megabytes
		ROLLSEG_POOLS                   = 19                    #Number of rollseg buffer pools
		MULTI_PAGE_GET_NUM              = 1                     #Maximum number of pages for each read of buffer
		PRELOAD_SCAN_NUM                = 0                     #The number of pages scanned continuously to start preload task
		PRELOAD_EXTENT_NUM              = 0                     #The number of clusters preloaded for the first time
		SORT_BUF_SIZE                   = 10                     #maximum sort buffer size in Megabytes
		SORT_BLK_SIZE                   = 1                     #maximum sort blk size in Megabytes
		SORT_BUF_GLOBAL_SIZE            = 1000                  #maximum global sort buffer size in Megabytes
		SORT_FLAG                       = 0                     #choose method of sort
		HAGR_HASH_SIZE                  = 100000                #hash table size for hagr
		HJ_BUF_GLOBAL_SIZE              = 500                   #maximum hash buffer size for all hash join in Megabytes
		HJ_BUF_SIZE                     = 50                    #maximum hash buffer size for single hash join in Megabytes
		HJ_BLK_SIZE                     = 1                     #hash buffer size allocated each time for hash join in Megabytes
		HAGR_BUF_GLOBAL_SIZE            = 500                   #maximum buffer size for all hagr in Megabytes
		HAGR_BUF_SIZE                   = 50                    #maximum buffer size for single hagr in Megabytes
		HAGR_BLK_SIZE                   = 1                     #buffer size allocated each time for hagr in Megabytes
		MTAB_MEM_SIZE                   = 8                     #memory table size in Kilobytes
		FTAB_MEM_SIZE                   = 0                     #file table package size in Kilobytes
		MMT_GLOBAL_SIZE                 = 4000                  #memory map table global size in megabytes
		MMT_SIZE                        = 0                     #memory map table size in megabytes
		MMT_FLAG                        = 1                     #ways of storing bdta data in memory map table
		DICT_BUF_SIZE                   = 10                     #dictionary buffer size in Megabytes
		HFS_CACHE_SIZE                  = 160                   #hfs cache size in Megabytes, used in huge horizon table for insert, update,delete
		VM_STACK_SIZE                   = 256                   #VM stack size in Kilobytes
		VM_POOL_SIZE                    = 64                    #VM pool size in Kilobytes
		VM_POOL_TARGET                  = 32768                 #VM pool target size in Kilobytes