Changes between Initial Version and Version 1 of Ticket #69, comment 16


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Timestamp:
Jan 6, 2017, 9:39:47 AM (8 years ago)
Author:
Valery V. Sedletski

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  • Ticket #69, comment 16

    initial v1  
    1212
    1313Yes, it looks that shared memory is used. No idea why. Malloc should not use shared memory. So, or Theseus lies, or I don't know.
     14
     15Regarding JFS, I use the one from eCS 2.2. Didn't used IBM's versions since many years.
     16
     17> I know for sure, that if you run a lot of apps, you'd better keep it low.
     18
     19Indeed, VAL is the limit of user memory. Everything above that is kernel memory. Everything below it is user memory. So, if you need to run a lot of apps, you need to keep it higher, not lower. But if you need big JFS cache or use VPC (it, unlike VBox, allocates VM memory from kernel arena), you need increase kernel arena, i.e., lower VAL. So, you need some balabce between these.
     20
     21Also, you have 780 concurrent processes, which is a huge amount, which is not used. This number should be an order of magnitude less, or you will lose hundreds of useful megabytes of RAM. The same about THREADS. This explains why you could not use more than 2048 MB.