pgalloc: implement async page saving #11952
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Aside from improving checkpointing performance by using AIO to better utilize disk bandwidth, this makes it possible to parallelize writing pages with scanning for zero pages (in a later CL). PiperOrigin-RevId: 769787293
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pgalloc: implement async page saving
Aside from improving checkpointing performance by using AIO to better utilize
disk bandwidth, this makes it possible to parallelize writing pages with
scanning for zero pages (in a later CL).