== sanity test 101m: read ahead for small file and last stripe of the file ========================================================== 09:43:25 (1770648205)
keep default fallocate mode: 0
Test readahead: size=4096 ramax= iosz=1048576
short read: 0 ->+ 1048576 -> 4096 4096
short read: 4096 ->+ 1044480 -> 4096 0
snapshot_time             1770648206.838754265 secs.nsecs
start_time                1770648206.712001946 secs.nsecs
elapsed_time              0.126752319 secs.nsecs
misses                    2 samples [pages]
zero_size_window          2 samples [pages]
failed_to_fast_read       1 samples [pages]
Test readahead: size=16384 ramax= iosz=1048576
short read: 0 ->+ 1048576 -> 16384 16384
short read: 16384 ->+ 1032192 -> 16384 0
snapshot_time             1770648207.020165584 secs.nsecs
start_time                1770648206.898563977 secs.nsecs
elapsed_time              0.121601607 secs.nsecs
hits                      3 samples [pages]
misses                    2 samples [pages]
zero_size_window          4 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 3 3 3
Test readahead: size=16385 ramax= iosz=1048576
short read: 0 ->+ 1048576 -> 16385 16385
short read: 16385 ->+ 1032191 -> 16385 0
snapshot_time             1770648207.193387266 secs.nsecs
start_time                1770648207.074907500 secs.nsecs
elapsed_time              0.118479766 secs.nsecs
hits                      4 samples [pages]
misses                    1 samples [pages]
zero_size_window          4 samples [pages]
readahead_to_eof          1 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 4 4 4
Test readahead: size=16383 ramax= iosz=1048576
short read: 0 ->+ 1048576 -> 16383 16383
short read: 16383 ->+ 1032193 -> 16383 0
snapshot_time             1770648207.366113945 secs.nsecs
start_time                1770648207.249193699 secs.nsecs
elapsed_time              0.116920246 secs.nsecs
hits                      3 samples [pages]
misses                    1 samples [pages]
zero_size_window          3 samples [pages]
readahead_to_eof          1 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 3 3 3
Test readahead: size=1048577 ramax= iosz=2097152
short read: 0 ->+ 2097152 -> 1048577 1048577
short read: 1048577 ->+ 1048575 -> 1048577 0
snapshot_time             1770648207.621436394 secs.nsecs
start_time                1770648207.421815061 secs.nsecs
elapsed_time              0.199621333 secs.nsecs
hits                      256 samples [pages]
misses                    1 samples [pages]
zero_size_window          256 samples [pages]
readahead_to_eof          1 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 256 256 256
Test readahead: size=1064960 ramax= iosz=2097152
short read: 0 ->+ 2097152 -> 1064960 1064960
short read: 1064960 ->+ 1032192 -> 1064960 0
snapshot_time             1770648207.822501633 secs.nsecs
start_time                1770648207.669365418 secs.nsecs
elapsed_time              0.153136215 secs.nsecs
hits                      259 samples [pages]
misses                    2 samples [pages]
zero_size_window          260 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 259 259 259
Test readahead: size=1064960 ramax= iosz=2097152
short read: 0 ->+ 2097152 -> 1064960 1064960
short read: 1064960 ->+ 1032192 -> 1064960 0
snapshot_time             1770648208.005102646 secs.nsecs
start_time                1770648207.880995289 secs.nsecs
elapsed_time              0.124107357 secs.nsecs
hits                      259 samples [pages]
misses                    2 samples [pages]
zero_size_window          260 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 259 259 259
Test readahead: size=2113536 ramax= iosz=3145728
short read: 0 ->+ 3145728 -> 2113536 2113536
short read: 2113536 ->+ 1032192 -> 2113536 0
snapshot_time             1770648208.271297462 secs.nsecs
start_time                1770648208.074084811 secs.nsecs
elapsed_time              0.197212651 secs.nsecs
hits                      515 samples [pages]
misses                    2 samples [pages]
zero_size_window          516 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           1 samples [pages] 515 515 515
Test readahead: size=4210688 ramax= iosz=5242880
short read: 0 ->+ 5242880 -> 4210688 4210688
short read: 4210688 ->+ 1032192 -> 4210688 0
snapshot_time             1770648208.664593102 secs.nsecs
start_time                1770648208.341865023 secs.nsecs
elapsed_time              0.322728079 secs.nsecs
hits                      1026 samples [pages]
misses                    3 samples [pages]
readpage_not_consecutive  1 samples [pages]
zero_size_window          1027 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           2 samples [pages] 3 1023 1026