Why does increasing cache size slow down time series access so much?
bash-3.2$ ./tst_ar4 -h pr_A1_256_128_128.nc
cs[0] cs[1] cs[2] cache(MB) deflate shuffle read_hor(us) read_time_ser(us)
256 128 128 0.5 0 0 217 2773
256 128 128 1.0 0 0 214 1935
256 128 128 4.0 0 0 214 1929
256 128 128 32.0 0 0 160 84440
256 128 128 128.0 0 0 129 82407
