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Google thinks Linux is slow to reboot, so they patch it
Manage episode 324082213 series 1954062
Google linux boxes have over 16 NVMe SSD PCIe Express drives.When a shutdown signal is sent to linux, the OS iterate through each NVMe and send synchronous request to shutdown that takes 4.5 seconds. This adds up to over a minute to achieve a reboot. Google patches linux with asynchronous Shutdown APIs
patch https://lore.kernel.org/lkml/20220328230008.3587975-1-tansuresh@google.com/
Sync vs async https://www.youtube.com/results?search_query=asynchronous+vs+synchronous+hussein
512 ตอน
Manage episode 324082213 series 1954062
Google linux boxes have over 16 NVMe SSD PCIe Express drives.When a shutdown signal is sent to linux, the OS iterate through each NVMe and send synchronous request to shutdown that takes 4.5 seconds. This adds up to over a minute to achieve a reboot. Google patches linux with asynchronous Shutdown APIs
patch https://lore.kernel.org/lkml/20220328230008.3587975-1-tansuresh@google.com/
Sync vs async https://www.youtube.com/results?search_query=asynchronous+vs+synchronous+hussein
512 ตอน
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