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Distinguish SI and Binary Prefixes

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SI prefixes [the decimal prefixes] refer strictly to powers of 10. They
should not be used to indicate powers of 2. e.g., one kilobit
represents 1000 bits instead of 1024 bits. IEC 60027‐2 symbols are
formed adding a "i" to the SI symbol (e.g. G + i = Gi).
This commit is contained in:
Jim Huang
2021-05-30 13:09:02 +08:00
parent e2c095fad2
commit 0f57425f80
5 changed files with 26 additions and 26 deletions
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8
src/segment.c
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@@ -17,14 +17,14 @@ static uint8_t* mi_segment_raw_page_start(const mi_segment_t* segment, const mi_
/* --------------------------------------------------------------------------------
Segment allocation
We allocate pages inside bigger "segments" (4mb on 64-bit). This is to avoid
We allocate pages inside bigger "segments" (4MiB on 64-bit). This is to avoid
splitting VMA's on Linux and reduce fragmentation on other OS's.
Each thread owns its own segments.
Currently we have:
- small pages (64kb), 64 in one segment
- medium pages (512kb), 8 in one segment
- large pages (4mb), 1 in one segment
- small pages (64KiB), 64 in one segment
- medium pages (512KiB), 8 in one segment
- large pages (4MiB), 1 in one segment
- huge blocks > MI_LARGE_OBJ_SIZE_MAX become large segment with 1 page
In any case the memory for a segment is virtual and usually committed on demand.