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tcp.7: Clarify that tcp_mem measures in units of the system page size
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -476,7 +476,8 @@ to match the size required by the path for full throughput.
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.IR tcp_mem " (since Linux 2.4)
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.\" Since 2.4.0-test7
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This is a vector of 3 integers: [low, pressure, high].
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These bounds are used by TCP to track its memory usage.
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These bounds, measured in units of the system page size,
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are used by TCP to track its memory usage.
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The defaults are calculated at boot time from the amount of
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available memory.
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(TCP can only use
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