** Changed in: intel
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1188010
Title:
[Feature] Accelerated CRC-T10DIF checksum for the SCSI layer
Status in intel:
Fix Released
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Saucy:
Fix Released
Bug description:
The current CRC-T10DIF checksum is computed using a table lookup. By using
PCLMULQDQ and SSE instructions available in Sandy
Bridge and later CPUs, the checksum computation speed can be sped up by 8x
and more, improving the throughput for Solid State Drive and also new NVM
express products.
Upstream schedule: kernel 3.12
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