diff options
Diffstat (limited to 'vendor/modernc.org/sqlite/README.md')
| -rw-r--r-- | vendor/modernc.org/sqlite/README.md | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/modernc.org/sqlite/README.md b/vendor/modernc.org/sqlite/README.md index a47f345f..aa45ff87 100644 --- a/vendor/modernc.org/sqlite/README.md +++ b/vendor/modernc.org/sqlite/README.md @@ -21,3 +21,56 @@ allowing one of the maintainers to work on it also in office hours. ## Builders [modern-c.appspot.com/-/builder/?importpath=modernc.org%2fsqlite](https://modern-c.appspot.com/-/builder/?importpath=modernc.org%2fsqlite) + +## Speedtest1 + +Numbers for the pure Go version were produced by + + ~/src/modernc.org/sqlite/speedtest1$ go build && ./speedtest1 + +Numbers for the pure C version were produced by + + ~/src/modernc.org/sqlite/testdata/sqlite-src-3410200/test$ gcc speedtest1.c ../../sqlite-amalgamation-3410200/sqlite3.c -lpthread -ldl && ./a.out + +The results are from Go version 1.20.4 and GCC version 10.2.1 on a +Linux/amd64 machine, CPU: AMD Ryzen 9 3900X 12-Core Processor × 24, 128GB +RAM. Shown are the best of 3 runs. + + Go C + + -- Speedtest1 for SQLite 3.41.2 2023-03-22 11:56:21 0d1fc92f94cb6b76bffe3ec34d69 -- Speedtest1 for SQLite 3.41.2 2023-03-22 11:56:21 0d1fc92f94cb6b76bffe3ec34d69 + 100 - 50000 INSERTs into table with no index...................... 0.071s 100 - 50000 INSERTs into table with no index...................... 0.077s + 110 - 50000 ordered INSERTS with one index/PK..................... 0.114s 110 - 50000 ordered INSERTS with one index/PK..................... 0.082s + 120 - 50000 unordered INSERTS with one index/PK................... 0.137s 120 - 50000 unordered INSERTS with one index/PK................... 0.099s + 130 - 25 SELECTS, numeric BETWEEN, unindexed...................... 0.083s 130 - 25 SELECTS, numeric BETWEEN, unindexed...................... 0.091s + 140 - 10 SELECTS, LIKE, unindexed................................. 0.210s 140 - 10 SELECTS, LIKE, unindexed................................. 0.120s + 142 - 10 SELECTS w/ORDER BY, unindexed............................ 0.276s 142 - 10 SELECTS w/ORDER BY, unindexed............................ 0.182s + 145 - 10 SELECTS w/ORDER BY and LIMIT, unindexed.................. 0.183s 145 - 10 SELECTS w/ORDER BY and LIMIT, unindexed.................. 0.099s + 150 - CREATE INDEX five times..................................... 0.172s 150 - CREATE INDEX five times..................................... 0.127s + 160 - 10000 SELECTS, numeric BETWEEN, indexed..................... 0.080s 160 - 10000 SELECTS, numeric BETWEEN, indexed..................... 0.078s + 161 - 10000 SELECTS, numeric BETWEEN, PK.......................... 0.080s 161 - 10000 SELECTS, numeric BETWEEN, PK.......................... 0.078s + 170 - 10000 SELECTS, text BETWEEN, indexed........................ 0.187s 170 - 10000 SELECTS, text BETWEEN, indexed........................ 0.169s + 180 - 50000 INSERTS with three indexes............................ 0.196s 180 - 50000 INSERTS with three indexes............................ 0.154s + 190 - DELETE and REFILL one table................................. 0.200s 190 - DELETE and REFILL one table................................. 0.155s + 200 - VACUUM...................................................... 0.180s 200 - VACUUM...................................................... 0.142s + 210 - ALTER TABLE ADD COLUMN, and query........................... 0.004s 210 - ALTER TABLE ADD COLUMN, and query........................... 0.005s + 230 - 10000 UPDATES, numeric BETWEEN, indexed..................... 0.093s 230 - 10000 UPDATES, numeric BETWEEN, indexed..................... 0.080s + 240 - 50000 UPDATES of individual rows............................ 0.153s 240 - 50000 UPDATES of individual rows............................ 0.137s + 250 - One big UPDATE of the whole 50000-row table................. 0.024s 250 - One big UPDATE of the whole 50000-row table................. 0.019s + 260 - Query added column after filling............................ 0.004s 260 - Query added column after filling............................ 0.005s + 270 - 10000 DELETEs, numeric BETWEEN, indexed..................... 0.278s 270 - 10000 DELETEs, numeric BETWEEN, indexed..................... 0.263s + 280 - 50000 DELETEs of individual rows............................ 0.188s 280 - 50000 DELETEs of individual rows............................ 0.180s + 290 - Refill two 50000-row tables using REPLACE................... 0.411s 290 - Refill two 50000-row tables using REPLACE................... 0.359s + 300 - Refill a 50000-row table using (b&1)==(a&1)................. 0.175s 300 - Refill a 50000-row table using (b&1)==(a&1)................. 0.151s + 310 - 10000 four-ways joins....................................... 0.427s 310 - 10000 four-ways joins....................................... 0.365s + 320 - subquery in result set...................................... 0.440s 320 - subquery in result set...................................... 0.521s + 400 - 70000 REPLACE ops on an IPK................................. 0.125s 400 - 70000 REPLACE ops on an IPK................................. 0.106s + 410 - 70000 SELECTS on an IPK..................................... 0.081s 410 - 70000 SELECTS on an IPK..................................... 0.078s + 500 - 70000 REPLACE on TEXT PK.................................... 0.174s 500 - 70000 REPLACE on TEXT PK.................................... 0.116s + 510 - 70000 SELECTS on a TEXT PK.................................. 0.153s 510 - 70000 SELECTS on a TEXT PK.................................. 0.117s + 520 - 70000 SELECT DISTINCT....................................... 0.083s 520 - 70000 SELECT DISTINCT....................................... 0.067s + 980 - PRAGMA integrity_check...................................... 0.436s 980 - PRAGMA integrity_check...................................... 0.377s + 990 - ANALYZE..................................................... 0.107s 990 - ANALYZE..................................................... 0.038s + TOTAL....................................................... 5.525s TOTAL....................................................... 4.637s + +This particular test executes 16.1% faster in the C version. |