== sanity test 101m: read ahead for small file and last stripe of the file ========================================================== 11:06:58 (1772467618)
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             1772467620.586182391 secs.nsecs
start_time                1772467620.434934216 secs.nsecs
elapsed_time              0.151248175 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             1772467620.757712505 secs.nsecs
start_time                1772467620.625357313 secs.nsecs
elapsed_time              0.132355192 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             1772467620.932183443 secs.nsecs
start_time                1772467620.804547734 secs.nsecs
elapsed_time              0.127635709 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             1772467621.103423722 secs.nsecs
start_time                1772467620.985130502 secs.nsecs
elapsed_time              0.118293220 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             1772467621.375563907 secs.nsecs
start_time                1772467621.153586392 secs.nsecs
elapsed_time              0.221977515 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             1772467621.664199125 secs.nsecs
start_time                1772467621.441803263 secs.nsecs
elapsed_time              0.222395862 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             1772467622.014146048 secs.nsecs
start_time                1772467621.784164848 secs.nsecs
elapsed_time              0.229981200 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             1772467622.426105515 secs.nsecs
start_time                1772467622.133176973 secs.nsecs
elapsed_time              0.292928542 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             1772467623.062525950 secs.nsecs
start_time                1772467622.563984030 secs.nsecs
elapsed_time              0.498541920 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