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On UnQLite

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Presented at Kyoto.pm Tech Talk #5

Presented at Kyoto.pm Tech Talk #5

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  • 1. On UnQLite Kenichi Ishigaki (@charsbar) Kyoto.pm #5 Jul 13, 2013
  • 2. http://blog.64p.org/entry/2013/07/05/155212
  • 3. UnQLite = Not SQLite
  • 4. What's Different • Key/Value Store • Document Store (JSON) • License (2-Clause BSD)
  • 5. What's Similar • Self-contained • Cross Platform
  • 6. Suitable For Toolchains
  • 7. Usage: Like A Hash tie my %hash, 'UnQLite', 'foo.db'; $hash{foo} = 'bar'; print $hash{foo};
  • 8. Usage: OOPs my $db = UnQLite->open('foo.db'); $db->kv_store(foo => 'bar'); my $v = $db->kv_fetch('foo');
  • 9. Usage: Iteration my $db = UnQLite->open('foo.db'); my $cursor = $db->cursor_init; while($cursor->next_entry && $cursor->valid_entry) { my ($key, $data) = ($cursor->key, $cursor->data); ... }
  • 10. JSON... only for Jx9 my $db = UnQLite->open(':memory:'); $db->exec(<<'JX9'); db_exists('foo') || db_create('foo'); db_store('foo', [{bar: 'baz'}]) || print db_errlog(); print db_fetch('foo');# {"bar":"baz","__id":0} JX9 say dump $db->kv_fetch('foo'); # ?????
  • 11. Performance
  • 12. $ perl bench.pl --perl --bdb --sqlite 100 10000 (store) Rate sql bdb_hs bdb_bt unq kc unq_m perl sql 23.5/s -- -10% -19% -22% -41% -80% -86% bdb_hs 26.1/s 11% -- -10% -13% -35% -78% -85% bdb_bt 29.0/s 23% 11% -- -4% -28% -75% -83% unq 30.1/s 28% 15% 4% -- -25% -74% -83% kc 40.2/s 71% 54% 39% 33% -- -66% -77% unq_m 118/s 400% 351% 306% 291% 193% -- -32% perl 172/s 633% 560% 495% 472% 329% 47% --
  • 13. $ perl bench.pl --perl --bdb --sqlite 10 100000 (store) Rate bdb_hs sql unq bdb_bt kc perl unq_m bdb_hs 1.14/s -- -53% -57% -60% -81% -89% -89% sql 2.43/s 114% -- -8% -15% -59% -76% -77% unq 2.65/s 133% 9% -- -7% -55% -74% -75% bdb_bt 2.87/s 152% 18% 8% -- -52% -72% -73% kc 5.95/s 424% 145% 124% 108% -- -42% -44% perl 10.2/s 798% 320% 285% 256% 71% -- -4% unq_m 10.6/s 836% 338% 301% 271% 79% 4% --
  • 14. $ perl bench.pl --perl --bdb --sqlite 10 1000000 (store) s/iter bdb_hs unq sql bdb_bt unq_m kc perl bdb_hs 10.7 -- -32% -61% -65% -81% -83% -87% unq 7.29 47% -- -43% -49% -72% -76% -81% sql 4.17 158% 75% -- -10% -51% -57% -67% bdb_bt 3.74 187% 95% 12% -- -45% -52% -63% unq_m 2.04 426% 257% 104% 83% -- -13% -32% kc 1.78 502% 309% 134% 110% 14% -- -22% perl 1.40 669% 423% 199% 168% 46% 28% --
  • 15. $ perl bench.pl --perl --bdb --sqlite 10 10000000 (store) s/iter unq_m bdb_hs unq kc sql bdb_bt perl unq_m 184 -- -38% -51% -67% -77% -78% -91% bdb_hs 114 62% -- -20% -46% -62% -64% -85% unq 91.0 103% 25% -- -33% -53% -55% -82% kc 61.3 201% 86% 48% -- -30% -33% -73% sql 43.1 328% 164% 111% 42% -- -5% -61% bdb_bt 40.9 350% 178% 122% 50% 5% -- -59% perl 16.6 1008% 584% 447% 268% 159% 146% --
  • 16. $ perl bench.pl --bdb 100 10000 (fetch) Rate bdb_bt unq bdb_hs kc bdb_bt 40.0/s -- -5% -8% -23% unq 42.2/s 5% -- -3% -19% bdb_hs 43.7/s 9% 3% -- -16% kc 52.1/s 30% 23% 19% --
  • 17. $ perl bench.pl --bdb 10 100000 (fetch) Rate bdb_hs bdb_bt unq kc bdb_hs 2.21/s -- -39% -43% -59% bdb_bt 3.60/s 63% -- -7% -33% unq 3.88/s 76% 8% -- -28% kc 5.41/s 145% 50% 39% --
  • 18. $ perl bench.pl --bdb 10 1000000 (fetch) s/iter bdb_hs unq bdb_bt kc bdb_hs 4.94 -- -26% -40% -61% unq 3.67 35% -- -19% -48% bdb_bt 2.97 67% 24% -- -35% kc 1.92 158% 92% 55% --
  • 19. $ perl bench.pl --bdb 10 10000000 s/iter bdb_hs unq kc bdb_bt bdb_hs 53.2 -- -15% -20% -37% unq 45.0 18% -- -6% -26% kc 42.5 25% 6% -- -22% bdb_bt 33.3 60% 35% 28% --
  • 20. New storage engines are coming soon(?)
  • 21. Further Information http://unqlite.org https://github.com/tokuhirom/UnQLite

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