Hi Hanjun & Barry,
thanks for the quick help!
On 10/09/2021 09:36, Hanjun Guo wrote:
Thanks Barry, I think you are right.
I misunderstood Dietmar's feedback and thought there are 64 GB memory before placing the 32G memory.
Thanks Hanjun
On 2021/9/10 14:53, Song Bao Hua (Barry Song) via Linaro-open-discussions wrote:
Hi Dietmar, Nice to hear from you.
Good to hear from you too.
Each cpu socket has two DIEs(two NUMA). It seems you are placing all memories in one DIE of one socket.
You might want to place one memory on odd slots like 010, 030. 0 EVEN 0 -> one numa 0 ODD 0 -> the other numa.
Ah, this explains it! Looks like we got confused by Table 17-3 and 17-4 under https://support.huawei.com/enterprise/en/doc/EDOC1100051325/9ac3a070/replaci...
BTW, you might want to put one memory in each memory slot or place half-full memories(one memory in each memory channel). Otherwise, the bandwidth would be limited and the performance might behave differently with a system whose memories are fully or half-fully installed.
So 16 memory modules (one per slot) or 8 (one per channel) is better than only 4. Noted.
We'll try this asap.
-- Dietmar