修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/admin-guide/sysctl/vm.rst
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@@ -970,7 +970,7 @@
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 The unit is in fractions of 10,000. The default value of 10 means the
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 distances between watermarks are 0.1% of the available memory in the
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-node/system. The maximum value is 1000, or 10% of memory.
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+node/system. The maximum value is 3000, or 30% of memory.
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 A high rate of threads entering direct reclaim (allocstall) or kswapd
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 going to sleep prematurely (kswapd_low_wmark_hit_quickly) can indicate