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Reduce RAM to 1 GiB

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This commit is contained in:
Rodrigo Arias 2024-07-09 21:11:44 +02:00
parent 813e7cae2f
commit 6b3af5b188
2 changed files with 28 additions and 3 deletions
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25
JOURNAL.md
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@ -1040,3 +1040,28 @@ Let's see if we can reproduce it again in the same position.
Let's make it automatic, so we only need to boot and confirm that it Let's make it automatic, so we only need to boot and confirm that it
hangs. Just in case we can make it not hang by a miracle. hangs. Just in case we can make it not hang by a miracle.
With blocks of up to 64K we hang in the ~50 M region.
iter=2042 nblocks=1577 allocated=50458K (A)
iter=2043 nblocks=1578 allocated=50489K (A)
iter=2044 nblocks=1579 allocated=50550K (A)
iter=2045 nblocks=1580 allocated=50605K (A)
With blocks of maxsize=512K it also hangs around ~57M.
memtool v1.0.0 maxsize=512K
iter=0 nblocks=1 allocated=88K (A)
iter=1 nblocks=2 allocated=464K (A)
...
iter=275 nblocks=218 allocated=56674K (A)
iter=276 nblocks=219 allocated=56787K (A)
iter=277 nblocks=220 allocated=57252K (A)
iter=278 nblocks=221 allocated=57493K (A)
iter=279 nblocks=222 allocated=57581K (A)
iter=280 nblocks=221 allocated=57416K (D)
iter=281 nblocks=222 allocated=57521K (A)
Maybe there is a problem in the memory segment? Can we reduce it to 1 GiB only
and see if it has any effect?

6
ox-plic.dts
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@ -70,14 +70,14 @@
* *
* [0x0_6000_0000, 0x0_7000_0000) -> DMA pool (256 MiB) * [0x0_6000_0000, 0x0_7000_0000) -> DMA pool (256 MiB)
* [0x0_7000_0000, 0x0_8000_0000) -> DMA pool (256 MiB) * [0x0_7000_0000, 0x0_8000_0000) -> DMA pool (256 MiB)
* [0x0_8000_0000, 0x0_fff0_0000) -> RAM memory (2047 MiB) * [0x0_8000_0000, 0x0_fff0_0000) -> RAM memory (1024 MiB)
* [0x0_fff0_0000, 0x1_0000_0000) -> Empty (1 MiB) * [0x0_fff0_0000, 0x1_0000_0000) -> Empty (1024 MiB)
* [0x1_0000_0000, 0x1_c000_0000) -> PMEM (3072 MiB) * [0x1_0000_0000, 0x1_c000_0000) -> PMEM (3072 MiB)
* [0x1_c000_0000, 0x2_8000_0000) -> Empty (3072 MiB) * [0x1_c000_0000, 0x2_8000_0000) -> Empty (3072 MiB)
*/ */
memory@80000000 { memory@80000000 {
device_type = "memory"; device_type = "memory";
reg = <0x0 0x80000000 0x0 0x7ff00000>; reg = <0x0 0x80000000 0x0 0x40000000>;
}; };
reserved-memory { reserved-memory {
#address-cells = <2>; /* Starting address and size */ #address-cells = <2>; /* Starting address and size */