tests/test-generaldelta.t

sparse-revlog: implement algorithm to write sparse delta chains (issue5480)

The classic behavior of revlog._isgooddeltainfo is to consider the span size
of the whole delta chain, and limit it to 4 * textlen.
Once sparse-revlog writing is allowed (and enforced with a requirement),
revlog._isgooddeltainfo considers the span of the largest chunk as the
distance used in the verification, instead of using the span of the whole
delta chain.

In order to compute the span of the largest chunk, we need to slice into
chunks a chain with the new revision at the top of the revlog, and take the
maximal span of these chunks. The sparse read density is a parameter to the
slicing, as it will stop when the global read density reaches this threshold.
For instance, a density of 50% means that 2 of 4 read bytes are actually used
for the reconstruction of the revision (the others are part of other chains).

This allows a new revision to be potentially stored with a diff against
another revision anywhere in the history, instead of forcing it in the last 4
* textlen. The result is a much better compression on repositories that have
many concurrent branches. Here are a comparison between using deltas from
current upstream (aggressive-merge-deltas on by default) and deltas from a
sparse-revlog

Comparison of `.hg/store/` size:

    mercurial (6.74% merges):
        before:     46,831,873 bytes
        after:      46,795,992 bytes (no relevant change)
    pypy (8.30% merges):
        before:    333,524,651 bytes
        after:     308,417,511 bytes -8%
    netbeans (34.21% merges):
        before:  1,141,847,554 bytes
        after:   1,131,093,161 bytes -1%
    mozilla-central (4.84% merges):
        before:  2,344,248,850 bytes
        after:   2,328,459,258 bytes -1%
    large-private-repo-A (merge 19.73%)
        before: 41,510,550,163 bytes
        after:   8,121,763,428 bytes -80%
    large-private-repo-B (23.77%)
        before: 58,702,221,709 bytes
        after:   8,351,588,828 bytes -76%

Comparison of `00manifest.d` size:

    mercurial (6.74% merges):
        before:      6,143,044 bytes
        after:       6,107,163 bytes
    pypy (8.30% merges):
        before:     52,941,780 bytes
        after:      27,834,082 bytes -48%
    netbeans (34.21% merges):
        before:    130,088,982 bytes
        after:     119,337,636 bytes -10%
    mozilla-central (4.84% merges):
        before:    215,096,339 bytes
        after:     199,496,863 bytes -8%
    large-private-repo-A (merge 19.73%)
        before: 33,725,285,081 bytes
        after:     390,302,545 bytes -99%
    large-private-repo-B (23.77%)
        before: 49,457,701,645 bytes
        after:   1,366,752,187 bytes -97%


The better delta chains provide a performance boost in relevant repositories:

    pypy, bundling 1000 revisions:
        before: 1.670s
        after:  1.149s -31%

Unbundling got a bit slower. probably because the sparse algorithm is still
pure
python.

    pypy, unbundling 1000 revisions:
        before: 4.062s
        after:  4.507s +10%

Performance of bundle/unbundle in repository with few concurrent branches (eg:
mercurial) are unaffected.

No significant differences have been noticed then timing `hg push` and `hg
pull` locally. More state timings are being gathered.

Same as for aggressive-merge-delta, better delta comes with longer delta
chains. Longer chains have a performance impact. For example. The length of
the chain needed to get the manifest of pypy's tip moves from 82 item to 1929
items. This moves the restore time from 3.88ms to 11.3ms.

Delta chain length is an independent issue that affects repository without
this changes. It will be dealt with independently.

No significant differences have been observed on repositories where
`sparse-revlog` have not much effect (mercurial, unity, netbeans). On pypy,
small differences have been observed on some operation affected by delta chain
building and retrieval.


    pypy, perfmanifest
        before: 0.006162s
        after:  0.017899s +190%

    pypy, commit:
        before: 0.382
        after:  0.376 -1%

    pypy, status:
        before: 0.157
        after:  0.168 +7%

More comprehensive and stable timing comparisons are in progress.

#require no-reposimplestore

Check whether size of generaldelta revlog is not bigger than its
regular equivalent. Test would fail if generaldelta was naive
implementation of parentdelta: third manifest revision would be fully
inserted due to big distance from its paren revision (zero).

  $ hg init repo --config format.generaldelta=no --config format.usegeneraldelta=no
  $ cd repo
  $ echo foo > foo
  $ echo bar > bar
  $ echo baz > baz
  $ hg commit -q -Am boo
  $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes
  $ for r in 1 2 3; do
  >   echo $r > foo
  >   hg commit -q -m $r
  >   hg up -q -r 0
  >   hg pull . -q -r $r -R ../gdrepo
  > done

  $ cd ..
  >>> from __future__ import print_function
  >>> import os
  >>> regsize = os.stat("repo/.hg/store/00manifest.i").st_size
  >>> gdsize = os.stat("gdrepo/.hg/store/00manifest.i").st_size
  >>> if regsize < gdsize:
  ...     print('generaldata increased size of manifest')

Verify rev reordering doesnt create invalid bundles (issue4462)
This requires a commit tree that when pulled will reorder manifest revs such
that the second manifest to create a file rev will be ordered before the first
manifest to create that file rev. We also need to do a partial pull to ensure
reordering happens. At the end we verify the linkrev points at the earliest
commit.

  $ hg init server --config format.generaldelta=True
  $ cd server
  $ touch a
  $ hg commit -Aqm a
  $ echo x > x
  $ echo y > y
  $ hg commit -Aqm xy
  $ hg up -q '.^'
  $ echo x > x
  $ echo z > z
  $ hg commit -Aqm xz
  $ hg up -q 1
  $ echo b > b
  $ hg commit -Aqm b
  $ hg merge -q 2
  $ hg commit -Aqm merge
  $ echo c > c
  $ hg commit -Aqm c
  $ hg log -G -T '{rev} {shortest(node)} {desc}'
  @  5 ebb8 c
  |
  o    4 baf7 merge
  |\
  | o  3 a129 b
  | |
  o |  2 958c xz
  | |
  | o  1 f00c xy
  |/
  o  0 3903 a
  
  $ cd ..
  $ hg init client --config format.generaldelta=false --config format.usegeneraldelta=false
  $ cd client
  $ hg pull -q ../server -r 4
  $ hg debugdeltachain x
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base          3          2          3   1.50000         3         0    0.00000

  $ cd ..

Test "usegeneraldelta" config
(repo are general delta, but incoming bundle are not re-deltafied)

delta coming from the server base delta server are not recompressed.
(also include the aggressive version for comparison)

  $ hg clone repo --pull --config format.usegeneraldelta=1 usegd
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 6 changes to 3 files (+2 heads)
  new changesets 0ea3fcf9d01d:bba78d330d9c
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg clone repo --pull --config format.generaldelta=1 full
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 4 changesets with 6 changes to 3 files (+2 heads)
  new changesets 0ea3fcf9d01d:bba78d330d9c
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -R repo debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base        104        135        104   0.77037       104         0    0.00000
        1       1        2        0    prev         57        135        161   1.19259       161         0    0.00000
        2       1        3        1    prev         57        135        218   1.61481       218         0    0.00000
        3       2        1       -1    base        104        135        104   0.77037       104         0    0.00000
  $ hg -R usegd debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base        104        135        104   0.77037       104         0    0.00000
        1       1        2        0      p1         57        135        161   1.19259       161         0    0.00000
        2       1        3        1    prev         57        135        218   1.61481       218         0    0.00000
        3       1        2        0      p1         57        135        161   1.19259       275       114    0.70807
  $ hg -R full debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base        104        135        104   0.77037       104         0    0.00000
        1       1        2        0      p1         57        135        161   1.19259       161         0    0.00000
        2       1        2        0      p1         57        135        161   1.19259       218        57    0.35404
        3       1        2        0      p1         57        135        161   1.19259       275       114    0.70807

Test format.aggressivemergedeltas

  $ hg init --config format.generaldelta=1 aggressive
  $ cd aggressive
  $ cat << EOF >> .hg/hgrc
  > [format]
  > generaldelta = 1
  > EOF
  $ touch a b c d e
  $ hg commit -Aqm side1
  $ hg up -q null
  $ touch x y
  $ hg commit -Aqm side2

- Verify non-aggressive merge uses p1 (commit 1) as delta parent
  $ hg merge -q 0
  $ hg commit -q -m merge
  $ hg debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base         59        215         59   0.27442        59         0    0.00000
        1       1        2        0    prev         61         86        120   1.39535       120         0    0.00000
        2       1        2        0      p2         62        301        121   0.40199       182        61    0.50413

  $ hg strip -q -r . --config extensions.strip=

- Verify aggressive merge uses p2 (commit 0) as delta parent
  $ hg up -q -C 1
  $ hg merge -q 0
  $ hg commit -q -m merge --config format.aggressivemergedeltas=True
  $ hg debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base         59        215         59   0.27442        59         0    0.00000
        1       1        2        0    prev         61         86        120   1.39535       120         0    0.00000
        2       1        2        0      p2         62        301        121   0.40199       182        61    0.50413

Test that strip bundle use bundle2
  $ hg --config extensions.strip= strip .
  0 files updated, 0 files merged, 5 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/aggressive/.hg/strip-backup/1c5d4dc9a8b8-6c68e60c-backup.hg
  $ hg debugbundle .hg/strip-backup/*
  Stream params: {Compression: BZ}
  changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
      1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9
  cache:rev-branch-cache -- {} (mandatory: False)
  phase-heads -- {} (mandatory: True)
      1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9 draft

  $ cd ..

test maxdeltachainspan

  $ hg init source-repo
  $ cd source-repo
  $ hg debugbuilddag --new-file '.+5:brancha$.+11:branchb$.+30:branchc<brancha+2<branchb+2'
# add an empty revision somewhere
  $ hg up tip
  14 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg rm .
  removing nf10
  removing nf11
  removing nf12
  removing nf13
  removing nf14
  removing nf15
  removing nf16
  removing nf17
  removing nf51
  removing nf52
  removing nf6
  removing nf7
  removing nf8
  removing nf9
  $ hg commit -m 'empty all'
  $ hg revert --all --rev 'p1(.)'
  adding nf10
  adding nf11
  adding nf12
  adding nf13
  adding nf14
  adding nf15
  adding nf16
  adding nf17
  adding nf51
  adding nf52
  adding nf6
  adding nf7
  adding nf8
  adding nf9
  $ hg commit -m 'restore all'
  $ hg up null
  0 files updated, 0 files merged, 14 files removed, 0 files unresolved
  $ 
  $ cd ..
  $ hg -R source-repo debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base         46         45         46   1.02222        46         0    0.00000
        1       1        2        0      p1         57         90        103   1.14444       103         0    0.00000
        2       1        3        1      p1         57        135        160   1.18519       160         0    0.00000
        3       1        4        2      p1         57        180        217   1.20556       217         0    0.00000
        4       1        5        3      p1         57        225        274   1.21778       274         0    0.00000
        5       1        6        4      p1         57        270        331   1.22593       331         0    0.00000
        6       2        1       -1    base         46         45         46   1.02222        46         0    0.00000
        7       2        2        6      p1         57         90        103   1.14444       103         0    0.00000
        8       2        3        7      p1         57        135        160   1.18519       160         0    0.00000
        9       2        4        8      p1         57        180        217   1.20556       217         0    0.00000
       10       2        5        9      p1         58        226        275   1.21681       275         0    0.00000
       11       2        6       10      p1         58        272        333   1.22426       333         0    0.00000
       12       2        7       11      p1         58        318        391   1.22956       391         0    0.00000
       13       2        8       12      p1         58        364        449   1.23352       449         0    0.00000
       14       2        9       13      p1         58        410        507   1.23659       507         0    0.00000
       15       2       10       14      p1         58        456        565   1.23904       565         0    0.00000
       16       2       11       15      p1         58        502        623   1.24104       623         0    0.00000
       17       2       12       16      p1         58        548        681   1.24270       681         0    0.00000
       18       3        1       -1    base         47         46         47   1.02174        47         0    0.00000
       19       3        2       18      p1         58         92        105   1.14130       105         0    0.00000
       20       3        3       19      p1         58        138        163   1.18116       163         0    0.00000
       21       3        4       20      p1         58        184        221   1.20109       221         0    0.00000
       22       3        5       21      p1         58        230        279   1.21304       279         0    0.00000
       23       3        6       22      p1         58        276        337   1.22101       337         0    0.00000
       24       3        7       23      p1         58        322        395   1.22671       395         0    0.00000
       25       3        8       24      p1         58        368        453   1.23098       453         0    0.00000
       26       3        9       25      p1         58        414        511   1.23430       511         0    0.00000
       27       3       10       26      p1         58        460        569   1.23696       569         0    0.00000
       28       3       11       27      p1         58        506        627   1.23913       627         0    0.00000
       29       3       12       28      p1         58        552        685   1.24094       685         0    0.00000
       30       3       13       29      p1         58        598        743   1.24247       743         0    0.00000
       31       3       14       30      p1         58        644        801   1.24379       801         0    0.00000
       32       3       15       31      p1         58        690        859   1.24493       859         0    0.00000
       33       3       16       32      p1         58        736        917   1.24592       917         0    0.00000
       34       3       17       33      p1         58        782        975   1.24680       975         0    0.00000
       35       3       18       34      p1         58        828       1033   1.24758      1033         0    0.00000
       36       3       19       35      p1         58        874       1091   1.24828      1091         0    0.00000
       37       3       20       36      p1         58        920       1149   1.24891      1149         0    0.00000
       38       3       21       37      p1         58        966       1207   1.24948      1207         0    0.00000
       39       3       22       38      p1         58       1012       1265   1.25000      1265         0    0.00000
       40       3       23       39      p1         58       1058       1323   1.25047      1323         0    0.00000
       41       3       24       40      p1         58       1104       1381   1.25091      1381         0    0.00000
       42       3       25       41      p1         58       1150       1439   1.25130      1439         0    0.00000
       43       3       26       42      p1         58       1196       1497   1.25167      1497         0    0.00000
       44       3       27       43      p1         58       1242       1555   1.25201      1555         0    0.00000
       45       3       28       44      p1         58       1288       1613   1.25233      1613         0    0.00000
       46       3       29       45      p1         58       1334       1671   1.25262      1671         0    0.00000
       47       3       30       46      p1         58       1380       1729   1.25290      1729         0    0.00000
       48       3       31       47      p1         58       1426       1787   1.25316      1787         0    0.00000
       49       4        1       -1    base        197        316        197   0.62342       197         0    0.00000
       50       4        2       49      p1         58        362        255   0.70442       255         0    0.00000
       51       4        3       50    prev        356        594        611   1.02862       611         0    0.00000
       52       4        4       51      p1         58        640        669   1.04531       669         0    0.00000
       53       5        1       -1    base          0          0          0   0.00000         0         0    0.00000
       54       5        2       53      p1        376        640        376   0.58750       376         0    0.00000
  $ hg clone --pull source-repo --config experimental.maxdeltachainspan=2800 relax-chain --config format.generaldelta=yes
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 55 changesets with 53 changes to 53 files (+2 heads)
  new changesets 61246295ee1e:c930ac4a5b32
  updating to branch default
  14 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -R relax-chain debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base         46         45         46   1.02222        46         0    0.00000
        1       1        2        0      p1         57         90        103   1.14444       103         0    0.00000
        2       1        3        1      p1         57        135        160   1.18519       160         0    0.00000
        3       1        4        2      p1         57        180        217   1.20556       217         0    0.00000
        4       1        5        3      p1         57        225        274   1.21778       274         0    0.00000
        5       1        6        4      p1         57        270        331   1.22593       331         0    0.00000
        6       2        1       -1    base         46         45         46   1.02222        46         0    0.00000
        7       2        2        6      p1         57         90        103   1.14444       103         0    0.00000
        8       2        3        7      p1         57        135        160   1.18519       160         0    0.00000
        9       2        4        8      p1         57        180        217   1.20556       217         0    0.00000
       10       2        5        9      p1         58        226        275   1.21681       275         0    0.00000
       11       2        6       10      p1         58        272        333   1.22426       333         0    0.00000
       12       2        7       11      p1         58        318        391   1.22956       391         0    0.00000
       13       2        8       12      p1         58        364        449   1.23352       449         0    0.00000
       14       2        9       13      p1         58        410        507   1.23659       507         0    0.00000
       15       2       10       14      p1         58        456        565   1.23904       565         0    0.00000
       16       2       11       15      p1         58        502        623   1.24104       623         0    0.00000
       17       2       12       16      p1         58        548        681   1.24270       681         0    0.00000
       18       3        1       -1    base         47         46         47   1.02174        47         0    0.00000
       19       3        2       18      p1         58         92        105   1.14130       105         0    0.00000
       20       3        3       19      p1         58        138        163   1.18116       163         0    0.00000
       21       3        4       20      p1         58        184        221   1.20109       221         0    0.00000
       22       3        5       21      p1         58        230        279   1.21304       279         0    0.00000
       23       3        6       22      p1         58        276        337   1.22101       337         0    0.00000
       24       3        7       23      p1         58        322        395   1.22671       395         0    0.00000
       25       3        8       24      p1         58        368        453   1.23098       453         0    0.00000
       26       3        9       25      p1         58        414        511   1.23430       511         0    0.00000
       27       3       10       26      p1         58        460        569   1.23696       569         0    0.00000
       28       3       11       27      p1         58        506        627   1.23913       627         0    0.00000
       29       3       12       28      p1         58        552        685   1.24094       685         0    0.00000
       30       3       13       29      p1         58        598        743   1.24247       743         0    0.00000
       31       3       14       30      p1         58        644        801   1.24379       801         0    0.00000
       32       3       15       31      p1         58        690        859   1.24493       859         0    0.00000
       33       3       16       32      p1         58        736        917   1.24592       917         0    0.00000
       34       3       17       33      p1         58        782        975   1.24680       975         0    0.00000
       35       3       18       34      p1         58        828       1033   1.24758      1033         0    0.00000
       36       3       19       35      p1         58        874       1091   1.24828      1091         0    0.00000
       37       3       20       36      p1         58        920       1149   1.24891      1149         0    0.00000
       38       3       21       37      p1         58        966       1207   1.24948      1207         0    0.00000
       39       3       22       38      p1         58       1012       1265   1.25000      1265         0    0.00000
       40       3       23       39      p1         58       1058       1323   1.25047      1323         0    0.00000
       41       3       24       40      p1         58       1104       1381   1.25091      1381         0    0.00000
       42       3       25       41      p1         58       1150       1439   1.25130      1439         0    0.00000
       43       3       26       42      p1         58       1196       1497   1.25167      1497         0    0.00000
       44       3       27       43      p1         58       1242       1555   1.25201      1555         0    0.00000
       45       3       28       44      p1         58       1288       1613   1.25233      1613         0    0.00000
       46       3       29       45      p1         58       1334       1671   1.25262      1671         0    0.00000
       47       3       30       46      p1         58       1380       1729   1.25290      1729         0    0.00000
       48       3       31       47      p1         58       1426       1787   1.25316      1787         0    0.00000
       49       4        1       -1    base        197        316        197   0.62342       197         0    0.00000
       50       4        2       49      p1         58        362        255   0.70442       255         0    0.00000
       51       2       13       17      p1         58        594        739   1.24411      2781      2042    2.76319
       52       5        1       -1    base        369        640        369   0.57656       369         0    0.00000
       53       6        1       -1    base          0          0          0   0.00000         0         0    0.00000
       54       6        2       53      p1        376        640        376   0.58750       376         0    0.00000
  $ hg clone --pull source-repo --config experimental.maxdeltachainspan=0 noconst-chain --config format.generaldelta=yes
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 55 changesets with 53 changes to 53 files (+2 heads)
  new changesets 61246295ee1e:c930ac4a5b32
  updating to branch default
  14 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -R noconst-chain debugdeltachain -m
      rev  chain# chainlen     prev   delta       size    rawsize  chainsize     ratio   lindist extradist extraratio
        0       1        1       -1    base         46         45         46   1.02222        46         0    0.00000
        1       1        2        0      p1         57         90        103   1.14444       103         0    0.00000
        2       1        3        1      p1         57        135        160   1.18519       160         0    0.00000
        3       1        4        2      p1         57        180        217   1.20556       217         0    0.00000
        4       1        5        3      p1         57        225        274   1.21778       274         0    0.00000
        5       1        6        4      p1         57        270        331   1.22593       331         0    0.00000
        6       2        1       -1    base         46         45         46   1.02222        46         0    0.00000
        7       2        2        6      p1         57         90        103   1.14444       103         0    0.00000
        8       2        3        7      p1         57        135        160   1.18519       160         0    0.00000
        9       2        4        8      p1         57        180        217   1.20556       217         0    0.00000
       10       2        5        9      p1         58        226        275   1.21681       275         0    0.00000
       11       2        6       10      p1         58        272        333   1.22426       333         0    0.00000
       12       2        7       11      p1         58        318        391   1.22956       391         0    0.00000
       13       2        8       12      p1         58        364        449   1.23352       449         0    0.00000
       14       2        9       13      p1         58        410        507   1.23659       507         0    0.00000
       15       2       10       14      p1         58        456        565   1.23904       565         0    0.00000
       16       2       11       15      p1         58        502        623   1.24104       623         0    0.00000
       17       2       12       16      p1         58        548        681   1.24270       681         0    0.00000
       18       3        1       -1    base         47         46         47   1.02174        47         0    0.00000
       19       3        2       18      p1         58         92        105   1.14130       105         0    0.00000
       20       3        3       19      p1         58        138        163   1.18116       163         0    0.00000
       21       3        4       20      p1         58        184        221   1.20109       221         0    0.00000
       22       3        5       21      p1         58        230        279   1.21304       279         0    0.00000
       23       3        6       22      p1         58        276        337   1.22101       337         0    0.00000
       24       3        7       23      p1         58        322        395   1.22671       395         0    0.00000
       25       3        8       24      p1         58        368        453   1.23098       453         0    0.00000
       26       3        9       25      p1         58        414        511   1.23430       511         0    0.00000
       27       3       10       26      p1         58        460        569   1.23696       569         0    0.00000
       28       3       11       27      p1         58        506        627   1.23913       627         0    0.00000
       29       3       12       28      p1         58        552        685   1.24094       685         0    0.00000
       30       3       13       29      p1         58        598        743   1.24247       743         0    0.00000
       31       3       14       30      p1         58        644        801   1.24379       801         0    0.00000
       32       3       15       31      p1         58        690        859   1.24493       859         0    0.00000
       33       3       16       32      p1         58        736        917   1.24592       917         0    0.00000
       34       3       17       33      p1         58        782        975   1.24680       975         0    0.00000
       35       3       18       34      p1         58        828       1033   1.24758      1033         0    0.00000
       36       3       19       35      p1         58        874       1091   1.24828      1091         0    0.00000
       37       3       20       36      p1         58        920       1149   1.24891      1149         0    0.00000
       38       3       21       37      p1         58        966       1207   1.24948      1207         0    0.00000
       39       3       22       38      p1         58       1012       1265   1.25000      1265         0    0.00000
       40       3       23       39      p1         58       1058       1323   1.25047      1323         0    0.00000
       41       3       24       40      p1         58       1104       1381   1.25091      1381         0    0.00000
       42       3       25       41      p1         58       1150       1439   1.25130      1439         0    0.00000
       43       3       26       42      p1         58       1196       1497   1.25167      1497         0    0.00000
       44       3       27       43      p1         58       1242       1555   1.25201      1555         0    0.00000
       45       3       28       44      p1         58       1288       1613   1.25233      1613         0    0.00000
       46       3       29       45      p1         58       1334       1671   1.25262      1671         0    0.00000
       47       3       30       46      p1         58       1380       1729   1.25290      1729         0    0.00000
       48       3       31       47      p1         58       1426       1787   1.25316      1787         0    0.00000
       49       1        7        5      p1         58        316        389   1.23101      2857      2468    6.34447
       50       1        8       49      p1         58        362        447   1.23481      2915      2468    5.52125
       51       2       13       17      p1         58        594        739   1.24411      2642      1903    2.57510
       52       2       14       51      p1         58        640        797   1.24531      2700      1903    2.38770
       53       4        1       -1    base          0          0          0   0.00000         0         0    0.00000
       54       4        2       53      p1        376        640        376   0.58750       376         0    0.00000