Closed osctobe closed 11 months ago
Patch coverage has no change and project coverage change: +0.06%
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While each preadv() is followed by a fallocate() that removes the data range from image files on tmpfs, temporarily (between preadv() and fallocate()) the same data is in two places; this increases the memory overhead of restore operation by the size of a single preadv. Uncapped preadv() would read up to 2 GiB of data, thus we limit that to a smaller block size (128 MiB).