github.com/cockroachdb/pebble@v0.0.0-20231214172447-ab4952c5f87b/testdata/manual_compaction_file_boundaries (about)

     1  # Test the file-size grandparent boundary alignment heuristic. This test sets up
     2  # L3 with a file at each of 'a', 'b', ..., 'z'. It also creates a single file in
     3  # L2 spanning a-z. Then, it commits, flushes and compacts into L1 keys 'a@1',
     4  # 'aa@1', 'ab@1', ..., 'zz@1'. Finally, it tests compacting L1 into L2.
     5  #
     6  # With L3 as the grandparent level, the alignment heuristic should attempt to
     7  # align the output files with grandparent's boundaries. Each output file should
     8  # have a key range formed by the prefix of a single letter.
     9  
    10  define target-file-sizes=(5000, 5000, 5000, 5000)
    11  L2
    12    a.SET.101:<rand-bytes=1000>
    13    z.SET.102:<rand-bytes=1000>
    14  L3
    15    a.SET.001:<rand-bytes=10000>
    16  L3
    17    b.SET.002:<rand-bytes=10000>
    18  L3
    19    c.SET.003:<rand-bytes=10000>
    20  L3
    21    d.SET.004:<rand-bytes=10000>
    22  L3
    23    e.SET.005:<rand-bytes=10000>
    24  L3
    25    f.SET.006:<rand-bytes=10000>
    26  L3
    27    g.SET.007:<rand-bytes=10000>
    28  L3
    29    h.SET.008:<rand-bytes=10000>
    30  L3
    31    i.SET.009:<rand-bytes=10000>
    32  L3
    33    j.SET.010:<rand-bytes=10000>
    34  L3
    35    k.SET.011:<rand-bytes=10000>
    36  L3
    37    l.SET.012:<rand-bytes=10000>
    38  L3
    39    m.SET.013:<rand-bytes=10000>
    40  L3
    41    n.SET.014:<rand-bytes=10000>
    42  L3
    43    o.SET.015:<rand-bytes=10000>
    44  L3
    45    p.SET.016:<rand-bytes=10000>
    46  L3
    47    q.SET.017:<rand-bytes=10000>
    48  L3
    49    r.SET.018:<rand-bytes=10000>
    50  L3
    51    s.SET.019:<rand-bytes=10000>
    52  L3
    53    t.SET.020:<rand-bytes=10000>
    54  L3
    55    u.SET.021:<rand-bytes=10000>
    56  L3
    57    v.SET.022:<rand-bytes=10000>
    58  L3
    59    w.SET.023:<rand-bytes=10000>
    60  L3
    61    x.SET.024:<rand-bytes=10000>
    62  L3
    63    y.SET.025:<rand-bytes=10000>
    64  L3
    65    z.SET.026:<rand-bytes=10000>
    66  ----
    67  2:
    68    000004:[a#101,SET-z#102,SET]
    69  3:
    70    000005:[a#1,SET-a#1,SET]
    71    000006:[b#2,SET-b#2,SET]
    72    000007:[c#3,SET-c#3,SET]
    73    000008:[d#4,SET-d#4,SET]
    74    000009:[e#5,SET-e#5,SET]
    75    000010:[f#6,SET-f#6,SET]
    76    000011:[g#7,SET-g#7,SET]
    77    000012:[h#8,SET-h#8,SET]
    78    000013:[i#9,SET-i#9,SET]
    79    000014:[j#10,SET-j#10,SET]
    80    000015:[k#11,SET-k#11,SET]
    81    000016:[l#12,SET-l#12,SET]
    82    000017:[m#13,SET-m#13,SET]
    83    000018:[n#14,SET-n#14,SET]
    84    000019:[o#15,SET-o#15,SET]
    85    000020:[p#16,SET-p#16,SET]
    86    000021:[q#17,SET-q#17,SET]
    87    000022:[r#18,SET-r#18,SET]
    88    000023:[s#19,SET-s#19,SET]
    89    000024:[t#20,SET-t#20,SET]
    90    000025:[u#21,SET-u#21,SET]
    91    000026:[v#22,SET-v#22,SET]
    92    000027:[w#23,SET-w#23,SET]
    93    000028:[x#24,SET-x#24,SET]
    94    000029:[y#25,SET-y#25,SET]
    95    000030:[z#26,SET-z#26,SET]
    96  
    97  populate keylen=2 vallen=200 timestamps=(1)
    98  ----
    99  wrote 702 keys
   100  
   101  flush
   102  ----
   103  0.0:
   104    000033:[a@1#103,SET-aw@1#126,SET]
   105    000034:[ax@1#127,SET-bt@1#150,SET]
   106    000035:[bu@1#151,SET-cq@1#174,SET]
   107    000036:[cr@1#175,SET-dn@1#198,SET]
   108    000037:[do@1#199,SET-ek@1#222,SET]
   109    000038:[el@1#223,SET-fh@1#246,SET]
   110    000039:[fi@1#247,SET-ge@1#270,SET]
   111    000040:[gf@1#271,SET-hb@1#294,SET]
   112    000041:[hc@1#295,SET-hz@1#318,SET]
   113    000042:[i@1#319,SET-iw@1#342,SET]
   114    000043:[ix@1#343,SET-jt@1#366,SET]
   115    000044:[ju@1#367,SET-kq@1#390,SET]
   116    000045:[kr@1#391,SET-ln@1#414,SET]
   117    000046:[lo@1#415,SET-mk@1#438,SET]
   118    000047:[ml@1#439,SET-nh@1#462,SET]
   119    000048:[ni@1#463,SET-oe@1#486,SET]
   120    000049:[of@1#487,SET-pb@1#510,SET]
   121    000050:[pc@1#511,SET-pz@1#534,SET]
   122    000051:[q@1#535,SET-qw@1#558,SET]
   123    000052:[qx@1#559,SET-rt@1#582,SET]
   124    000053:[ru@1#583,SET-sq@1#606,SET]
   125    000054:[sr@1#607,SET-tn@1#630,SET]
   126    000055:[to@1#631,SET-uk@1#654,SET]
   127    000056:[ul@1#655,SET-vh@1#678,SET]
   128    000057:[vi@1#679,SET-we@1#702,SET]
   129    000058:[wf@1#703,SET-xb@1#726,SET]
   130    000059:[xc@1#727,SET-xz@1#750,SET]
   131    000060:[y@1#751,SET-yw@1#774,SET]
   132    000061:[yx@1#775,SET-zt@1#798,SET]
   133    000062:[zu@1#799,SET-zz@1#804,SET]
   134  2:
   135    000004:[a#101,SET-z#102,SET]
   136  3:
   137    000005:[a#1,SET-a#1,SET]
   138    000006:[b#2,SET-b#2,SET]
   139    000007:[c#3,SET-c#3,SET]
   140    000008:[d#4,SET-d#4,SET]
   141    000009:[e#5,SET-e#5,SET]
   142    000010:[f#6,SET-f#6,SET]
   143    000011:[g#7,SET-g#7,SET]
   144    000012:[h#8,SET-h#8,SET]
   145    000013:[i#9,SET-i#9,SET]
   146    000014:[j#10,SET-j#10,SET]
   147    000015:[k#11,SET-k#11,SET]
   148    000016:[l#12,SET-l#12,SET]
   149    000017:[m#13,SET-m#13,SET]
   150    000018:[n#14,SET-n#14,SET]
   151    000019:[o#15,SET-o#15,SET]
   152    000020:[p#16,SET-p#16,SET]
   153    000021:[q#17,SET-q#17,SET]
   154    000022:[r#18,SET-r#18,SET]
   155    000023:[s#19,SET-s#19,SET]
   156    000024:[t#20,SET-t#20,SET]
   157    000025:[u#21,SET-u#21,SET]
   158    000026:[v#22,SET-v#22,SET]
   159    000027:[w#23,SET-w#23,SET]
   160    000028:[x#24,SET-x#24,SET]
   161    000029:[y#25,SET-y#25,SET]
   162    000030:[z#26,SET-z#26,SET]
   163  
   164  compact a-zz L0
   165  ----
   166  1:
   167    000063:[a@1#103,SET-aw@1#126,SET]
   168    000064:[ax@1#127,SET-bt@1#150,SET]
   169    000065:[bu@1#151,SET-cq@1#174,SET]
   170    000066:[cr@1#175,SET-dn@1#198,SET]
   171    000067:[do@1#199,SET-ek@1#222,SET]
   172    000068:[el@1#223,SET-fh@1#246,SET]
   173    000069:[fi@1#247,SET-ge@1#270,SET]
   174    000070:[gf@1#271,SET-hb@1#294,SET]
   175    000071:[hc@1#295,SET-hz@1#318,SET]
   176    000072:[i@1#319,SET-iw@1#342,SET]
   177    000073:[ix@1#343,SET-jt@1#366,SET]
   178    000074:[ju@1#367,SET-kq@1#390,SET]
   179    000075:[kr@1#391,SET-ln@1#414,SET]
   180    000076:[lo@1#415,SET-mk@1#438,SET]
   181    000077:[ml@1#439,SET-nh@1#462,SET]
   182    000078:[ni@1#463,SET-oe@1#486,SET]
   183    000079:[of@1#487,SET-pb@1#510,SET]
   184    000080:[pc@1#511,SET-pz@1#534,SET]
   185    000081:[q@1#535,SET-qw@1#558,SET]
   186    000082:[qx@1#559,SET-rt@1#582,SET]
   187    000083:[ru@1#583,SET-sq@1#606,SET]
   188    000084:[sr@1#607,SET-tn@1#630,SET]
   189    000085:[to@1#631,SET-uk@1#654,SET]
   190    000086:[ul@1#655,SET-vh@1#678,SET]
   191    000087:[vi@1#679,SET-we@1#702,SET]
   192    000088:[wf@1#703,SET-xb@1#726,SET]
   193    000089:[xc@1#727,SET-xz@1#750,SET]
   194    000090:[y@1#751,SET-yw@1#774,SET]
   195    000091:[yx@1#775,SET-zt@1#798,SET]
   196    000092:[zu@1#799,SET-zz@1#804,SET]
   197  2:
   198    000004:[a#101,SET-z#102,SET]
   199  3:
   200    000005:[a#1,SET-a#1,SET]
   201    000006:[b#2,SET-b#2,SET]
   202    000007:[c#3,SET-c#3,SET]
   203    000008:[d#4,SET-d#4,SET]
   204    000009:[e#5,SET-e#5,SET]
   205    000010:[f#6,SET-f#6,SET]
   206    000011:[g#7,SET-g#7,SET]
   207    000012:[h#8,SET-h#8,SET]
   208    000013:[i#9,SET-i#9,SET]
   209    000014:[j#10,SET-j#10,SET]
   210    000015:[k#11,SET-k#11,SET]
   211    000016:[l#12,SET-l#12,SET]
   212    000017:[m#13,SET-m#13,SET]
   213    000018:[n#14,SET-n#14,SET]
   214    000019:[o#15,SET-o#15,SET]
   215    000020:[p#16,SET-p#16,SET]
   216    000021:[q#17,SET-q#17,SET]
   217    000022:[r#18,SET-r#18,SET]
   218    000023:[s#19,SET-s#19,SET]
   219    000024:[t#20,SET-t#20,SET]
   220    000025:[u#21,SET-u#21,SET]
   221    000026:[v#22,SET-v#22,SET]
   222    000027:[w#23,SET-w#23,SET]
   223    000028:[x#24,SET-x#24,SET]
   224    000029:[y#25,SET-y#25,SET]
   225    000030:[z#26,SET-z#26,SET]
   226  
   227  # Perform the actual test. Compacting L1 into L2 should use L3's boundaries to
   228  # inform compaction output splitting.
   229  #
   230  compact a-zz L1
   231  ----
   232  2:
   233    000093:[a#101,SET-az@1#129,SET]
   234    000094:[b@1#130,SET-bz@1#156,SET]
   235    000095:[c@1#157,SET-cz@1#183,SET]
   236    000096:[d@1#184,SET-dz@1#210,SET]
   237    000097:[e@1#211,SET-ez@1#237,SET]
   238    000098:[f@1#238,SET-fz@1#264,SET]
   239    000099:[g@1#265,SET-gz@1#291,SET]
   240    000100:[h@1#292,SET-hz@1#318,SET]
   241    000101:[i@1#319,SET-iz@1#345,SET]
   242    000102:[j@1#346,SET-jz@1#372,SET]
   243    000103:[k@1#373,SET-kz@1#399,SET]
   244    000104:[l@1#400,SET-lz@1#426,SET]
   245    000105:[m@1#427,SET-mz@1#453,SET]
   246    000106:[n@1#454,SET-nz@1#480,SET]
   247    000107:[o@1#481,SET-oz@1#507,SET]
   248    000108:[p@1#508,SET-pz@1#534,SET]
   249    000109:[q@1#535,SET-qz@1#561,SET]
   250    000110:[r@1#562,SET-rz@1#588,SET]
   251    000111:[s@1#589,SET-sz@1#615,SET]
   252    000112:[t@1#616,SET-tz@1#642,SET]
   253    000113:[u@1#643,SET-uz@1#669,SET]
   254    000114:[v@1#670,SET-vz@1#696,SET]
   255    000115:[w@1#697,SET-wz@1#723,SET]
   256    000116:[x@1#724,SET-xz@1#750,SET]
   257    000117:[y@1#751,SET-yz@1#777,SET]
   258    000118:[z#102,SET-zr@1#796,SET]
   259    000119:[zs@1#797,SET-zz@1#804,SET]
   260  3:
   261    000005:[a#1,SET-a#1,SET]
   262    000006:[b#2,SET-b#2,SET]
   263    000007:[c#3,SET-c#3,SET]
   264    000008:[d#4,SET-d#4,SET]
   265    000009:[e#5,SET-e#5,SET]
   266    000010:[f#6,SET-f#6,SET]
   267    000011:[g#7,SET-g#7,SET]
   268    000012:[h#8,SET-h#8,SET]
   269    000013:[i#9,SET-i#9,SET]
   270    000014:[j#10,SET-j#10,SET]
   271    000015:[k#11,SET-k#11,SET]
   272    000016:[l#12,SET-l#12,SET]
   273    000017:[m#13,SET-m#13,SET]
   274    000018:[n#14,SET-n#14,SET]
   275    000019:[o#15,SET-o#15,SET]
   276    000020:[p#16,SET-p#16,SET]
   277    000021:[q#17,SET-q#17,SET]
   278    000022:[r#18,SET-r#18,SET]
   279    000023:[s#19,SET-s#19,SET]
   280    000024:[t#20,SET-t#20,SET]
   281    000025:[u#21,SET-u#21,SET]
   282    000026:[v#22,SET-v#22,SET]
   283    000027:[w#23,SET-w#23,SET]
   284    000028:[x#24,SET-x#24,SET]
   285    000029:[y#25,SET-y#25,SET]
   286    000030:[z#26,SET-z#26,SET]
   287  
   288  file-sizes
   289  ----
   290  L2:
   291    000093:[a#101,1-az@1#129,1]: 7472 bytes (7.3KB)
   292    000094:[b@1#130,1-bz@1#156,1]: 6465 bytes (6.3KB)
   293    000095:[c@1#157,1-cz@1#183,1]: 6465 bytes (6.3KB)
   294    000096:[d@1#184,1-dz@1#210,1]: 6465 bytes (6.3KB)
   295    000097:[e@1#211,1-ez@1#237,1]: 6465 bytes (6.3KB)
   296    000098:[f@1#238,1-fz@1#264,1]: 6465 bytes (6.3KB)
   297    000099:[g@1#265,1-gz@1#291,1]: 6465 bytes (6.3KB)
   298    000100:[h@1#292,1-hz@1#318,1]: 6465 bytes (6.3KB)
   299    000101:[i@1#319,1-iz@1#345,1]: 6465 bytes (6.3KB)
   300    000102:[j@1#346,1-jz@1#372,1]: 6465 bytes (6.3KB)
   301    000103:[k@1#373,1-kz@1#399,1]: 6465 bytes (6.3KB)
   302    000104:[l@1#400,1-lz@1#426,1]: 6465 bytes (6.3KB)
   303    000105:[m@1#427,1-mz@1#453,1]: 6465 bytes (6.3KB)
   304    000106:[n@1#454,1-nz@1#480,1]: 6465 bytes (6.3KB)
   305    000107:[o@1#481,1-oz@1#507,1]: 6465 bytes (6.3KB)
   306    000108:[p@1#508,1-pz@1#534,1]: 6465 bytes (6.3KB)
   307    000109:[q@1#535,1-qz@1#561,1]: 6464 bytes (6.3KB)
   308    000110:[r@1#562,1-rz@1#588,1]: 6465 bytes (6.3KB)
   309    000111:[s@1#589,1-sz@1#615,1]: 6465 bytes (6.3KB)
   310    000112:[t@1#616,1-tz@1#642,1]: 6465 bytes (6.3KB)
   311    000113:[u@1#643,1-uz@1#669,1]: 6465 bytes (6.3KB)
   312    000114:[v@1#670,1-vz@1#696,1]: 6465 bytes (6.3KB)
   313    000115:[w@1#697,1-wz@1#723,1]: 6465 bytes (6.3KB)
   314    000116:[x@1#724,1-xz@1#750,1]: 6465 bytes (6.3KB)
   315    000117:[y@1#751,1-yz@1#777,1]: 6465 bytes (6.3KB)
   316    000118:[z#102,1-zr@1#796,1]: 5752 bytes (5.6KB)
   317    000119:[zs@1#797,1-zz@1#804,1]: 2346 bytes (2.3KB)
   318  L3:
   319    000005:[a#1,1-a#1,1]: 10638 bytes (10KB)
   320    000006:[b#2,1-b#2,1]: 10638 bytes (10KB)
   321    000007:[c#3,1-c#3,1]: 10638 bytes (10KB)
   322    000008:[d#4,1-d#4,1]: 10638 bytes (10KB)
   323    000009:[e#5,1-e#5,1]: 10638 bytes (10KB)
   324    000010:[f#6,1-f#6,1]: 10638 bytes (10KB)
   325    000011:[g#7,1-g#7,1]: 10638 bytes (10KB)
   326    000012:[h#8,1-h#8,1]: 10638 bytes (10KB)
   327    000013:[i#9,1-i#9,1]: 10638 bytes (10KB)
   328    000014:[j#10,1-j#10,1]: 10638 bytes (10KB)
   329    000015:[k#11,1-k#11,1]: 10638 bytes (10KB)
   330    000016:[l#12,1-l#12,1]: 10638 bytes (10KB)
   331    000017:[m#13,1-m#13,1]: 10638 bytes (10KB)
   332    000018:[n#14,1-n#14,1]: 10638 bytes (10KB)
   333    000019:[o#15,1-o#15,1]: 10638 bytes (10KB)
   334    000020:[p#16,1-p#16,1]: 10638 bytes (10KB)
   335    000021:[q#17,1-q#17,1]: 10638 bytes (10KB)
   336    000022:[r#18,1-r#18,1]: 10638 bytes (10KB)
   337    000023:[s#19,1-s#19,1]: 10638 bytes (10KB)
   338    000024:[t#20,1-t#20,1]: 10638 bytes (10KB)
   339    000025:[u#21,1-u#21,1]: 10638 bytes (10KB)
   340    000026:[v#22,1-v#22,1]: 10638 bytes (10KB)
   341    000027:[w#23,1-w#23,1]: 10638 bytes (10KB)
   342    000028:[x#24,1-x#24,1]: 10638 bytes (10KB)
   343    000029:[y#25,1-y#25,1]: 10638 bytes (10KB)
   344    000030:[z#26,1-z#26,1]: 10638 bytes (10KB)
   345  
   346  # Test a scenario where there exists a grandparent file (in L3), but the L1->L2
   347  # compaction doesn't reach it until late in the compaction. The output file
   348  # should be split at 2x the target file size (~10K), despite not being aligned
   349  # with a grandparent.
   350  #
   351  # Additionally, when the compaction does reach the grandparent's start bound,
   352  # the compaction should NOT split the output if the current output is less than
   353  # 0.5x the target file size (~2.5K).
   354  #
   355  # Lastly, once past the final grandparent, the compaction should optimize for
   356  # cutting as close to file size as possible, resulting in an output file ~5K.
   357  
   358  define target-file-sizes=(5000, 5000, 5000, 5000)
   359  L1
   360    a.SET.201:<rand-bytes=1000>
   361    b.SET.202:<rand-bytes=1000>
   362    c.SET.203:<rand-bytes=1000>
   363    d.SET.204:<rand-bytes=1000>
   364    e.SET.205:<rand-bytes=1000>
   365    f.SET.206:<rand-bytes=1000>
   366    g.SET.207:<rand-bytes=1000>
   367    h.SET.208:<rand-bytes=1000>
   368    i.SET.209:<rand-bytes=1000>
   369    j.SET.210:<rand-bytes=1000>
   370    k.SET.211:<rand-bytes=1000>
   371    l.SET.212:<rand-bytes=1000>
   372    m.SET.213:<rand-bytes=1000>
   373    n.SET.214:<rand-bytes=1000>
   374    o.SET.215:<rand-bytes=1000>
   375  L2
   376    a.SET.101:<rand-bytes=10>
   377    z.SET.102:<rand-bytes=10>
   378  L3
   379    m.SET.001:<rand-bytes=10000>
   380  ----
   381  1:
   382    000004:[a#201,SET-o#215,SET]
   383  2:
   384    000005:[a#101,SET-z#102,SET]
   385  3:
   386    000006:[m#1,SET-m#1,SET]
   387  
   388  compact a-zz L1
   389  ----
   390  2:
   391    000007:[a#201,SET-j#210,SET]
   392    000008:[k#211,SET-o#215,SET]
   393    000009:[z#102,SET-z#102,SET]
   394  3:
   395    000006:[m#1,SET-m#1,SET]
   396  
   397  file-sizes
   398  ----
   399  L2:
   400    000007:[a#201,1-j#210,1]: 10811 bytes (11KB)
   401    000008:[k#211,1-o#215,1]: 5723 bytes (5.6KB)
   402    000009:[z#102,1-z#102,1]: 643 bytes (643B)
   403  L3:
   404    000006:[m#1,1-m#1,1]: 10638 bytes (10KB)
   405  
   406  # Test the file-size splitter's adaptive tolerance for early-splitting at a
   407  # grandparent boundary. The L1->L2 compaction has many opportunities to split at
   408  # a grandparent boundary at file sizes ≥ 2.5K. Because it's seen more than 8
   409  # grandparent boundaries, waits until file size is ≥ 90% of the target file size
   410  # (eg, ~4.5K).
   411  
   412  define target-file-sizes=(5000, 5000, 5000, 5000)
   413  L1
   414    a.SET.201:<rand-bytes=1000>
   415    b.SET.202:<rand-bytes=1000>
   416    c.SET.203:<rand-bytes=1000>
   417    d.SET.204:<rand-bytes=1000>
   418    e.SET.205:<rand-bytes=1000>
   419    f.SET.206:<rand-bytes=1000>
   420    g.SET.207:<rand-bytes=1000>
   421    h.SET.208:<rand-bytes=1000>
   422    i.SET.209:<rand-bytes=1000>
   423    j.SET.210:<rand-bytes=1000>
   424    k.SET.211:<rand-bytes=1000>
   425    l.SET.212:<rand-bytes=1000>
   426    m.SET.213:<rand-bytes=1000>
   427    n.SET.214:<rand-bytes=1000>
   428    o.SET.215:<rand-bytes=1000>
   429  L2
   430    a.SET.101:<rand-bytes=10>
   431    z.SET.102:<rand-bytes=10>
   432  L3
   433    a.SET.001:<rand-bytes=1000>
   434  L3
   435    ab.SET.002:<rand-bytes=1000>
   436  L3
   437    ac.SET.003:<rand-bytes=1000>
   438  L3
   439    ad.SET.004:<rand-bytes=1000>
   440  L3
   441    ad.SET.005:<rand-bytes=1000>
   442  L3
   443    ad.SET.006:<rand-bytes=1000>
   444  L3
   445    ad.SET.007:<rand-bytes=1000>
   446  L3
   447    ad.SET.008:<rand-bytes=1000>
   448  L3
   449    c.SET.009:<rand-bytes=1000>
   450  L3
   451    d.SET.010:<rand-bytes=1000>
   452  L3
   453    e.SET.011:<rand-bytes=1000>
   454  L3
   455    f.SET.012:<rand-bytes=1000>
   456  L3
   457    m.SET.013:<rand-bytes=1000>
   458  ----
   459  1:
   460    000004:[a#201,SET-o#215,SET]
   461  2:
   462    000005:[a#101,SET-z#102,SET]
   463  3:
   464    000006:[a#1,SET-a#1,SET]
   465    000007:[ab#2,SET-ab#2,SET]
   466    000008:[ac#3,SET-ac#3,SET]
   467    000013:[ad#8,SET-ad#8,SET]
   468    000012:[ad#7,SET-ad#7,SET]
   469    000011:[ad#6,SET-ad#6,SET]
   470    000010:[ad#5,SET-ad#5,SET]
   471    000009:[ad#4,SET-ad#4,SET]
   472    000014:[c#9,SET-c#9,SET]
   473    000015:[d#10,SET-d#10,SET]
   474    000016:[e#11,SET-e#11,SET]
   475    000017:[f#12,SET-f#12,SET]
   476    000018:[m#13,SET-m#13,SET]
   477  
   478  compact a-zz L1
   479  ----
   480  2:
   481    000019:[a#201,SET-e#205,SET]
   482    000020:[f#206,SET-l#212,SET]
   483    000021:[m#213,SET-z#102,SET]
   484  3:
   485    000006:[a#1,SET-a#1,SET]
   486    000007:[ab#2,SET-ab#2,SET]
   487    000008:[ac#3,SET-ac#3,SET]
   488    000013:[ad#8,SET-ad#8,SET]
   489    000012:[ad#7,SET-ad#7,SET]
   490    000011:[ad#6,SET-ad#6,SET]
   491    000010:[ad#5,SET-ad#5,SET]
   492    000009:[ad#4,SET-ad#4,SET]
   493    000014:[c#9,SET-c#9,SET]
   494    000015:[d#10,SET-d#10,SET]
   495    000016:[e#11,SET-e#11,SET]
   496    000017:[f#12,SET-f#12,SET]
   497    000018:[m#13,SET-m#13,SET]
   498  
   499  file-sizes
   500  ----
   501  L2:
   502    000019:[a#201,1-e#205,1]: 5723 bytes (5.6KB)
   503    000020:[f#206,1-l#212,1]: 7749 bytes (7.6KB)
   504    000021:[m#213,1-z#102,1]: 3686 bytes (3.6KB)
   505  L3:
   506    000006:[a#1,1-a#1,1]: 1638 bytes (1.6KB)
   507    000007:[ab#2,1-ab#2,1]: 1639 bytes (1.6KB)
   508    000008:[ac#3,1-ac#3,1]: 1639 bytes (1.6KB)
   509    000013:[ad#8,1-ad#8,1]: 1639 bytes (1.6KB)
   510    000012:[ad#7,1-ad#7,1]: 1639 bytes (1.6KB)
   511    000011:[ad#6,1-ad#6,1]: 1639 bytes (1.6KB)
   512    000010:[ad#5,1-ad#5,1]: 1639 bytes (1.6KB)
   513    000009:[ad#4,1-ad#4,1]: 1639 bytes (1.6KB)
   514    000014:[c#9,1-c#9,1]: 1638 bytes (1.6KB)
   515    000015:[d#10,1-d#10,1]: 1638 bytes (1.6KB)
   516    000016:[e#11,1-e#11,1]: 1638 bytes (1.6KB)
   517    000017:[f#12,1-f#12,1]: 1638 bytes (1.6KB)
   518    000018:[m#13,1-m#13,1]: 1638 bytes (1.6KB)