From 0539d7581388289367f77f2b800d0581ee34fb4c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 21 Jun 2010 15:22:56 +0200 Subject: [PATCH] Documentation update Signed-off-by: Jens Axboe --- HOWTO | 4 +++- fio.1 | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/HOWTO b/HOWTO index d320ab38..3e1e62a0 100644 --- a/HOWTO +++ b/HOWTO @@ -823,7 +823,9 @@ verify=str If writing to a file, fio can verify the file contents it in the header of each block. crc32c-intel Use hardware assisted crc32c calcuation - provided on SSE4.2 enabled processors. + provided on SSE4.2 enabled processors. Falls + back to regular software crc32c, if not + supported by the system. crc32 Use a crc32 sum of the data area and store it in the header of each block. diff --git a/fio.1 b/fio.1 index a42eb98e..e737906f 100644 --- a/fio.1 +++ b/fio.1 @@ -602,7 +602,9 @@ values are: .RS .TP .B md5 crc16 crc32 crc32c crc32c-intel crc64 crc7 sha256 sha512 sha1 -Store appropriate checksum in the header of each block. +Store appropriate checksum in the header of each block. crc32c-intel is +hardware accelerated SSE4.2 driven, falls back to regular crc32c if +not supported by the system. .TP .B meta Write extra information about each I/O (timestamp, block number, etc.). The -- 2.25.1