fio: avoid overwrite/fallocate

overwrite is too much time consuming. fallocate is rather slow on ext3.
fengguang · Dec 8, 2011 · 4531890 · 4531890
1 parent 095dcca
commit 4531890
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diff --git a/fio_fat_mmap_randwrite_4k b/fio_fat_mmap_randwrite_4k
@@ -7,6 +7,7 @@ bs=4k
 numjobs=1
 loops=1
 create_sparse=1
+fallocate=0
 overwrite=0
 group_reporting
 invalidate=0

diff --git a/fio_fat_mmap_randwrite_64k b/fio_fat_mmap_randwrite_64k
@@ -5,9 +5,9 @@ size=10G
 bs=64k
 ioengine=mmap
 rw=randwrite
-fallocate=1
 directory=/fs
-# create_sparse=1
+create_sparse=1
+fallocate=0
 overwrite=0
 end_fsync=1