== sanity test 101m: read ahead for small file and last stripe of the file ========================================================== 23:59:14 (1721879954)
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             1721879955.133483061 secs.nsecs
start_time                1721879955.050849184 secs.nsecs
elapsed_time              0.082633877 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             1721879955.250977964 secs.nsecs
start_time                1721879955.160487388 secs.nsecs
elapsed_time              0.090490576 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             1721879955.349057426 secs.nsecs
start_time                1721879955.282015928 secs.nsecs
elapsed_time              0.067041498 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             1721879955.437324208 secs.nsecs
start_time                1721879955.374899706 secs.nsecs
elapsed_time              0.062424502 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             1721879955.594105107 secs.nsecs
start_time                1721879955.465945214 secs.nsecs
elapsed_time              0.128159893 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             1721879955.745177540 secs.nsecs
start_time                1721879955.626838332 secs.nsecs
elapsed_time              0.118339208 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             1721879955.956885554 secs.nsecs
start_time                1721879955.822004918 secs.nsecs
elapsed_time              0.134880636 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             1721879956.207775611 secs.nsecs
start_time                1721879956.027957244 secs.nsecs
elapsed_time              0.179818367 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             1721879956.524356336 secs.nsecs
start_time                1721879956.281305799 secs.nsecs
elapsed_time              0.243050537 secs.nsecs
hits                      1026 samples [pages]
misses                    3 samples [pages]
zero_size_window          1027 samples [pages]
failed_to_fast_read       1 samples [pages]
readahead_pages           2 samples [pages] 3 1023 1026