explain extended size classes impact on quarantine
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README.md
18
README.md
@ -137,16 +137,18 @@ for the chosen values are not written yet, so use them at your own peril:
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* `CONFIG_SLAB_QUARANTINE_RANDOM_LENGTH`: `1` (default) to control the number
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of slots in the random array used to randomize reuse for small memory
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allocations. This sets the length for the largest size class (currently
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16384) and the quarantine length for smaller size classes is scaled to match
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the total memory of the quarantined allocations (1 becomes 1024 for 16 byte
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allocations).
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allocations. This sets the length for the largest size class (either 16kiB
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or 128kiB based on `CONFIG_EXTENDED_SIZE_CLASSES`) and the quarantine length
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for smaller size classes is scaled to match the total memory of the
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quarantined allocations (1 becomes 1024 for 16 byte allocations with 16kiB
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as the largest size class, or 8192 with 128kiB as the largest).
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* `CONFIG_SLAB_QUARANTINE_QUEUE_LENGTH`: `1` (default) to control the number of
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slots in the queue used to delay reuse for small memory allocations. This
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sets the length for the largest size class (currently 16384) and the
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quarantine length for smaller size classes is scaled to match the total
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memory of the quarantined allocations (1 becomes 1024 for 16 byte
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allocations).
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sets the length for the largest size class (either 16kiB or 128kiB based on
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`CONFIG_EXTENDED_SIZE_CLASSES`) and the quarantine length for smaller size
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classes is scaled to match the total memory of the quarantined allocations (1
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becomes 1024 for 16 byte allocations with 16kiB as the largest size class, or
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8192 with 128kiB as the largest).
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* `CONFIG_GUARD_SLABS_INTERVAL`: `1` (default) to control the number of slabs
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before a slab is skipped and left as an unused memory protected guard slab
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* `CONFIG_GUARD_SIZE_DIVISOR`: `2` (default) to control the maximum size of the
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