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Adding a huge zero pageAdding a huge zero pagePosted Oct 12, 2012 11:51 UTC (Fri) by etienne (subscriber, #25256)In reply to: Adding a huge zero page by kiryl Parent article: Adding a huge zero page
Sorry, late comment.
Shortening a huge zero page is good from the cache point of view, but maybe bad from DMA point of view, a: dd if=/dev/zero of=/dev/sda18 may be forced to use 4 Kbytes pages because the huge zero page is not contiguous in physical memory... Just my £0.02
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