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<p>Hi!</p>
<p><span>i have real RAM problems at my worker nodes, they are equipped with 256GB RAM. unfortunately i can only use a fraction of it for my VMs and i don't understand why? maybe someone can explain to me where all the RAM went?</span></p>
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<div>compute-0:~$ cat /proc/meminfo<br>
MemTotal: 263854428 kB<br>
MemFree: 25030424 kB<br>
MemAvailable: 24584388 kB<br>
Buffers: 35308 kB<br>
Cached: 350236 kB<br>
SwapCached: 0 kB<br>
Active: 27306600 kB<br>
Inactive: 236124 kB<br>
Active(anon): 27168144 kB<br>
Inactive(anon): 8936 kB<br>
Active(file): 138456 kB<br>
Inactive(file): 227188 kB<br>
Unevictable: 5424 kB<br>
Mlocked: 5424 kB<br>
SwapTotal: 0 kB<br>
SwapFree: 0 kB<br>
Dirty: 132 kB<br>
Writeback: 0 kB<br>
AnonPages: 27162864 kB<br>
Mapped: 99272 kB<br>
Shmem: 15880 kB<br>
Slab: 912816 kB<br>
SReclaimable: 132552 kB<br>
SUnreclaim: 780264 kB<br>
KernelStack: 40256 kB<br>
PageTables: 107948 kB<br>
NFS_Unstable: 0 kB<br>
Bounce: 0 kB<br>
WritebackTmp: 0 kB<br>
CommitLimit: 27069612 kB<br>
Committed_AS: 47150896 kB<br>
VmallocTotal: 34359738367 kB<br>
VmallocUsed: 823656 kB<br>
VmallocChunk: 34224520432 kB<br>
HardwareCorrupted: 0 kB<br>
CmaTotal: 16384 kB<br>
CmaFree: 2114464 kB<br>
HugePages_Total: 200<br>
HugePages_Free: 200<br>
HugePages_Rsvd: 0<br>
HugePages_Surp: 0<br>
Hugepagesize: 1048576 kB<br>
DirectMap4k: 18644 kB<br>
DirectMap2M: 5122048 kB<br>
DirectMap1G: 263192576 kB<br>
compute-0:~$ free<br>
total used free shared buff/cache available<br>
Mem: 263854428 237596844 24955580 15880 1302004 24512988<br>
Swap: 0 0 0<br>
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there are two running VMs, one is allocate 32GB and the other one 512MB but the server has only 24GB left? whats going on? this is an dual CPU system with 16x16GB slots full filled.<br>
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