Profiling results
-----------------
  Total cpu time observed: 808ms (out of 928ms)
  Number of samples taken: 4 (once every 202ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 808(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 808(100.0%)   0(0.0%)  profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0
                              run [3]                       100.0%
------------------------------------------------------------------
                              profile-thunk16 [2]           100.0%
 [3] 808(100.0%)   0(0.0%)  run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2
                              .../more-scheme.rkt:261:28 [4]100.0%
------------------------------------------------------------------
                              run [3]                       100.0%
 [4] 808(100.0%)   0(0.0%)  .../more-scheme.rkt:261:28 (unknown source)
                              run-improve47 [5]             100.0%
------------------------------------------------------------------
                              .../more-scheme.rkt:261:28 [4]100.0%
 [5] 808(100.0%)   0(0.0%)  run-improve47 ...-both-ends/src/mainloop.rkt:346:0
                              prepare-points-intervals [6]  100.0%
------------------------------------------------------------------
                              run-improve47 [5]             100.0%
 [6] 808(100.0%)   0(0.0%)  prepare-points-intervals ...s/src/points.rkt:133:0
                              loop [7]                      100.0%
------------------------------------------------------------------
                              prepare-points-intervals [6]  100.0%
 [7] 808(100.0%)   0(0.0%)  loop ...w-detection-both-ends/src/points.rkt:145:4
                              ??? [8]                        50.5%
                              loop [9]                       49.5%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 408(50.5%)    0(0.0%)  ??? ...ow-detection-both-ends/src/points.rkt:126:6
                              sample-multi-bounded [10]     100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [9] 400(49.5%)    0(0.0%)  loop ...ow-detection-both-ends/src/points.rkt:81:2
                              ??? [11]                      100.0%
------------------------------------------------------------------
                              ??? [8]                       100.0%
[10] 408(50.5%)    0(0.0%)  sample-multi-bounded ...h-ends/src/points.rkt:14:0
                              random-ranges [12]            100.0%
------------------------------------------------------------------
                              loop [9]                      100.0%
[11] 400(49.5%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:379:33
                              ival-sqrt [13]                 52.0%
                              ival-sub [14]                  48.0%
------------------------------------------------------------------
                              sample-multi-bounded [10]     100.0%
[12] 408(50.5%)  208(25.7%) random-ranges ...on-both-ends/src/common.rkt:164:0
                              build--> [16]                  49.0%
------------------------------------------------------------------
                              ??? [11]                      100.0%
[13] 208(25.7%)    0(0.0%)  ival-sqrt ...n-both-ends/src/biginterval.rkt:401:0
                              e-compute [15]                100.0%
------------------------------------------------------------------
                              ??? [11]                      100.0%
[14] 192(23.8%)    0(0.0%)  ival-sub ...on-both-ends/src/biginterval.rkt:244:0
                              e-compute-no-check [17]       100.0%
------------------------------------------------------------------
                              ival-sqrt [13]                100.0%
[15] 208(25.7%)    0(0.0%)  e-compute ...n-both-ends/src/biginterval.rkt:172:0
                              bfsqrt [18]                   100.0%
------------------------------------------------------------------
                              random-ranges [12]            100.0%
[16] 200(24.8%)  200(24.8%) build--> ...act/private/arrow-val-first.rkt:1214:0
------------------------------------------------------------------
                              ival-sub [14]                 100.0%
[17] 192(23.8%)    0(0.0%)  e-compute-no-check ...ds/src/biginterval.rkt:165:0
                              bfsub [19]                    100.0%
------------------------------------------------------------------
                              e-compute [15]                100.0%
[18] 208(25.7%)    0(0.0%)  bfsqrt ...lib/math/private/bigfloat/mpfr.rkt:632:4
                              ??? [20]                      100.0%
------------------------------------------------------------------
                              e-compute-no-check [17]       100.0%
[19] 192(23.8%)    0(0.0%)  bfsub ...-lib/math/private/bigfloat/mpfr.rkt:835:4
                              new-mpfr [21]                 100.0%
------------------------------------------------------------------
                              bfsqrt [18]                   100.0%
[20] 208(25.7%)  208(25.7%) ??? /opt/racket-7.5/collects/ffi/unsafe.rkt:938:4
------------------------------------------------------------------
                              bfsub [19]                    100.0%
[21] 192(23.8%)  192(23.8%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:348:0
------------------------------------------------------------------