JetBrains / leveldb
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 104 files with 14,320 lines of code.
    • 0 files changed more than 100 times (0 lines of code)
    • 1 file changed 51-100 times (1,257 lines of code)
    • 12 files changed 21-50 times (3,701 lines of code)
    • 82 files changed 6-20 times (8,826 lines of code)
    • 9 files changed 1-5 times (536 lines of code)
0% | 8% | 25% | 61% | 3%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 104 files with 14,320 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 16 files changed by 11-25 contributors (5,502 lines of code)
    • 67 files changed by 6-10 contributors (5,272 lines of code)
    • 20 files changed by 2-5 contributors (3,540 lines of code)
    • 1 file changed by 1 contributor (6 lines of code)
0% | 38% | 36% | 24% | <1%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
cc, h, md, in, txt, yaml, c, gitignore, clang-format, gitmodules, html
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
cc0% | 11% | 26% | 57% | 3%
h0% | 0% | 25% | 71% | 3%
html0% | 0% | 0% | 100% | 0%
in0% | 0% | 0% | 75% | 25%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
db0% | 21% | 41% | 37% | 0%
util0% | 0% | 29% | 68% | 1%
include0% | 0% | 34% | 61% | 4%
table0% | 0% | 0% | 100% | 0%
benchmarks0% | 0% | 0% | 77% | 22%
doc0% | 0% | 0% | 100% | 0%
helpers0% | 0% | 0% | 97% | 2%
port0% | 0% | 0% | 100% | 0%
cmake0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 50)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
1257 40 2011-03-18 2021-01-12 58 18 jorlow@chromium.org@62dab49... no-reply@google.com
1216 58 2011-03-18 2021-05-20 50 20 jorlow@chromium.org@62dab49... sanjay@google.com
654 49 2011-03-18 2020-01-08 43 12 jorlow@chromium.org@62dab49... costan@google.com
db.h
in include/leveldb
 52 - 2011-03-30 2021-02-23 39 13 jorlow@chromium.org@62dab49... cmumford@google.com
133 1 2011-03-18 2020-01-08 32 12 jorlow@chromium.org@62dab49... costan@google.com
env.h
in include/leveldb
 181 20 2011-03-30 2020-04-29 27 13 jorlow@chromium.org@62dab49... costan@google.com
184 13 2011-03-18 2019-05-23 26 12 jorlow@chromium.org@62dab49... sjingivan@gmail.com
358 10 2011-03-18 2020-04-29 26 11 jorlow@chromium.org@62dab49... costan@google.com
cache.cc
in util
 299 20 2011-03-18 2020-04-29 25 12 jorlow@chromium.org@62dab49... costan@google.com
125 15 2011-03-18 2019-05-28 23 13 jorlow@chromium.org@62dab49... costan@google.com
options.h
in include/leveldb
 45 - 2011-03-30 2020-04-29 22 12 jorlow@chromium.org@62dab49... costan@google.com
254 16 2011-03-18 2020-04-29 22 11 jorlow@chromium.org@62dab49... costan@google.com
200 6 2011-03-18 2020-04-29 21 11 jorlow@chromium.org@62dab49... costan@google.com
block.cc
in table
 220 16 2011-03-18 2021-01-11 19 11 jorlow@chromium.org@62dab49... no-reply@google.com
table.cc
in table
 220 8 2011-03-18 2020-05-04 19 11 jorlow@chromium.org@62dab49... costan@google.com
memenv.cc
in helpers/memenv
 300 33 2011-09-12 2020-04-29 18 8 hans@chromium.org costan@google.com
c.cc
in db
 463 60 2011-08-05 2021-01-25 18 7 gabor@google.com@62dab493-f... costan@google.com
32 - 2011-03-18 2020-04-13 17 8 jorlow@chromium.org@62dab49... costan@google.com
testutil.h
in util
 53 3 2011-03-18 2020-09-02 17 10 jorlow@chromium.org@62dab49... no-reply@google.com
62 1 2011-03-18 2020-07-13 17 9 jorlow@chromium.org@62dab49... costan@google.com
status.h
in include/leveldb
 70 14 2011-03-30 2019-05-23 17 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
104 9 2011-03-18 2020-04-29 17 11 jorlow@chromium.org@62dab49... costan@google.com
c.h
in include/leveldb
 158 - 2011-08-05 2021-03-04 17 10 gabor@google.com@62dab493-f... costan@google.com
options.cc
in util
 6 - 2011-03-18 2019-05-23 16 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
write_batch.h
in include/leveldb
 31 - 2011-03-30 2019-05-23 16 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
coding.h
in util
 72 4 2011-03-18 2020-04-13 16 8 jorlow@chromium.org@62dab49... costan@google.com
env.cc
in util
 82 10 2011-03-18 2020-04-29 16 9 jorlow@chromium.org@62dab49... costan@google.com
111 15 2011-03-18 2019-05-23 16 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
format.cc
in table
 114 5 2011-03-18 2019-05-23 16 10 jorlow@chromium.org@62dab49... sjingivan@gmail.com
224 6 2011-03-18 2020-01-08 16 10 jorlow@chromium.org@62dab49... costan@google.com
20 2 2011-03-18 2019-05-23 15 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
29 - 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
cache.h
in include/leveldb
 33 1 2011-03-30 2020-04-29 15 10 jorlow@chromium.org@62dab49... costan@google.com
table.h
in include/leveldb
 36 1 2011-03-30 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
iterator.h
in include/leveldb
 41 2 2011-03-30 2019-05-23 15 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
46 - 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
format.h
in table
 52 7 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
55 3 2011-03-18 2019-05-23 15 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
logging.cc
in util
 59 5 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
80 3 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
97 15 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
108 12 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
coding.cc
in util
 143 9 2011-03-18 2019-05-28 15 9 jorlow@chromium.org@62dab49... costan@google.com
33 - 2011-03-18 2020-04-29 14 9 jorlow@chromium.org@62dab49... costan@google.com
table_builder.h
in include/leveldb
 33 1 2011-03-30 2020-04-29 14 8 jorlow@chromium.org@62dab49... costan@google.com
45 3 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
arena.cc
in util
 48 - 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
slice.h
in include/leveldb
 59 7 2011-03-30 2020-04-29 14 8 jorlow@chromium.org@62dab49... costan@google.com
61 4 2011-03-18 2020-04-29 14 9 jorlow@chromium.org@62dab49... costan@google.com
79 8 2011-03-18 2020-01-08 14 8 jorlow@chromium.org@62dab49... costan@google.com
Files With Most Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
1216 58 2011-03-18 2021-05-20 50 20 jorlow@chromium.org@62dab49... sanjay@google.com
1257 40 2011-03-18 2021-01-12 58 18 jorlow@chromium.org@62dab49... no-reply@google.com
db.h
in include/leveldb
 52 - 2011-03-30 2021-02-23 39 13 jorlow@chromium.org@62dab49... cmumford@google.com
env.h
in include/leveldb
 181 20 2011-03-30 2020-04-29 27 13 jorlow@chromium.org@62dab49... costan@google.com
125 15 2011-03-18 2019-05-28 23 13 jorlow@chromium.org@62dab49... costan@google.com
654 49 2011-03-18 2020-01-08 43 12 jorlow@chromium.org@62dab49... costan@google.com
133 1 2011-03-18 2020-01-08 32 12 jorlow@chromium.org@62dab49... costan@google.com
184 13 2011-03-18 2019-05-23 26 12 jorlow@chromium.org@62dab49... sjingivan@gmail.com
cache.cc
in util
 299 20 2011-03-18 2020-04-29 25 12 jorlow@chromium.org@62dab49... costan@google.com
options.h
in include/leveldb
 45 - 2011-03-30 2020-04-29 22 12 jorlow@chromium.org@62dab49... costan@google.com
358 10 2011-03-18 2020-04-29 26 11 jorlow@chromium.org@62dab49... costan@google.com
254 16 2011-03-18 2020-04-29 22 11 jorlow@chromium.org@62dab49... costan@google.com
200 6 2011-03-18 2020-04-29 21 11 jorlow@chromium.org@62dab49... costan@google.com
table.cc
in table
 220 8 2011-03-18 2020-05-04 19 11 jorlow@chromium.org@62dab49... costan@google.com
block.cc
in table
 220 16 2011-03-18 2021-01-11 19 11 jorlow@chromium.org@62dab49... no-reply@google.com
104 9 2011-03-18 2020-04-29 17 11 jorlow@chromium.org@62dab49... costan@google.com
c.h
in include/leveldb
 158 - 2011-08-05 2021-03-04 17 10 gabor@google.com@62dab493-f... costan@google.com
testutil.h
in util
 53 3 2011-03-18 2020-09-02 17 10 jorlow@chromium.org@62dab49... no-reply@google.com
format.cc
in table
 114 5 2011-03-18 2019-05-23 16 10 jorlow@chromium.org@62dab49... sjingivan@gmail.com
224 6 2011-03-18 2020-01-08 16 10 jorlow@chromium.org@62dab49... costan@google.com
cache.h
in include/leveldb
 33 1 2011-03-30 2020-04-29 15 10 jorlow@chromium.org@62dab49... costan@google.com
status.h
in include/leveldb
 70 14 2011-03-30 2019-05-23 17 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
62 1 2011-03-18 2020-07-13 17 9 jorlow@chromium.org@62dab49... costan@google.com
options.cc
in util
 6 - 2011-03-18 2019-05-23 16 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
env.cc
in util
 82 10 2011-03-18 2020-04-29 16 9 jorlow@chromium.org@62dab49... costan@google.com
coding.cc
in util
 143 9 2011-03-18 2019-05-28 15 9 jorlow@chromium.org@62dab49... costan@google.com
55 3 2011-03-18 2019-05-23 15 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
97 15 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
46 - 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
108 12 2011-03-18 2020-04-29 15 9 jorlow@chromium.org@62dab49... costan@google.com
20 2 2011-03-18 2019-05-23 15 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
61 4 2011-03-18 2020-04-29 14 9 jorlow@chromium.org@62dab49... costan@google.com
arena.cc
in util
 48 - 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
99 5 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
235 16 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
33 - 2011-03-18 2020-04-29 14 9 jorlow@chromium.org@62dab49... costan@google.com
45 3 2011-03-18 2019-05-23 14 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
hash.cc
in util
 37 1 2011-03-18 2020-04-29 12 9 jorlow@chromium.org@62dab49... costan@google.com
arena.h
in util
 39 1 2011-03-18 2019-05-23 11 9 jorlow@chromium.org@62dab49... sjingivan@gmail.com
memenv.cc
in helpers/memenv
 300 33 2011-09-12 2020-04-29 18 8 hans@chromium.org costan@google.com
32 - 2011-03-18 2020-04-13 17 8 jorlow@chromium.org@62dab49... costan@google.com
write_batch.h
in include/leveldb
 31 - 2011-03-30 2019-05-23 16 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
coding.h
in util
 72 4 2011-03-18 2020-04-13 16 8 jorlow@chromium.org@62dab49... costan@google.com
111 15 2011-03-18 2019-05-23 16 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
format.h
in table
 52 7 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
iterator.h
in include/leveldb
 41 2 2011-03-30 2019-05-23 15 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
table.h
in include/leveldb
 36 1 2011-03-30 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
logging.cc
in util
 59 5 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
80 3 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
29 - 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
Files With Least Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
6 - 2019-11-08 2019-11-08 1 1 costan@google.com costan@google.com
12 - 2017-01-04 2019-05-23 2 2 cmumford@google.com sjingivan@gmail.com
db_bench_sqlite3.cc
in benchmarks
 570 18 2019-05-05 2020-04-29 6 3 costan@google.com costan@google.com
db_bench_tree_db.cc
in benchmarks
 431 15 2019-05-05 2020-04-29 5 3 costan@google.com costan@google.com
12 - 2019-03-01 2019-05-23 4 3 cmumford@google.com sjingivan@gmail.com
111 12 2018-04-17 2020-04-13 9 4 costan@google.com costan@google.com
76 2 2019-03-01 2020-04-29 6 4 cmumford@google.com costan@google.com
53 7 2016-01-29 2020-04-29 6 4 cmumford@google.com costan@google.com
30 1 2018-09-10 2019-05-23 4 4 costan@google.com sjingivan@gmail.com
export.h
in include/leveldb
 22 - 2017-10-04 2019-05-23 4 4 cmumford@google.com sjingivan@gmail.com
dumpfile.h
in include/leveldb
 11 - 2014-09-16 2019-05-23 5 4 cmumford@chromium.org sjingivan@gmail.com
memenv.h
in helpers/memenv
 8 - 2011-09-12 2019-05-23 5 4 hans@chromium.org sjingivan@gmail.com
4 - 2012-04-17 2019-05-23 4 4 sanjay@google.com sjingivan@gmail.com
db_bench.cc
in benchmarks
 892 47 2019-05-05 2021-02-17 11 5 costan@google.com cmumford@google.com
608 44 2019-03-01 2020-01-08 11 5 cmumford@google.com costan@google.com
420 - 2011-07-27 2021-01-01 8 5 gabor@google.com@62dab493-f... costan@google.com
197 11 2014-09-16 2020-04-29 9 5 cmumford@chromium.org costan@google.com
40 - 2012-04-17 2020-04-29 6 5 sanjay@google.com costan@google.com
18 - 2018-03-17 2020-04-13 9 5 costan@google.com costan@google.com
filter_policy.h
in include/leveldb
 17 - 2012-04-17 2019-05-23 6 5 sanjay@google.com sjingivan@gmail.com
hash.h
in util
 8 - 2011-03-18 2020-04-29 8 5 jorlow@chromium.org@62dab49... costan@google.com
78 5 2012-04-17 2019-05-23 7 6 sanjay@google.com sjingivan@gmail.com
77 - 2012-10-12 2019-05-23 6 6 dgrogan@chromium.org sjingivan@gmail.com
bloom.cc
in util
 62 4 2012-04-17 2019-05-23 8 6 sanjay@google.com sjingivan@gmail.com
comparator.h
in include/leveldb
 18 - 2011-03-30 2019-05-23 10 6 jorlow@chromium.org@62dab49... sjingivan@gmail.com
c.cc
in db
 463 60 2011-08-05 2021-01-25 18 7 gabor@google.com@62dab493-f... costan@google.com
crc32c.cc
in util
 322 3 2011-03-18 2020-04-29 11 7 jorlow@chromium.org@62dab49... costan@google.com
merger.cc
in table
 147 11 2011-03-18 2019-05-23 13 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
136 14 2011-03-18 2019-05-23 12 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
80 2 2011-07-21 2020-04-29 11 7 gabor@google.com@62dab493-f... costan@google.com
71 12 2011-03-18 2019-05-23 11 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
status.cc
in util
 66 1 2011-03-18 2020-04-29 13 7 jorlow@chromium.org@62dab49... costan@google.com
iterator.cc
in table
 60 10 2011-03-18 2019-05-23 12 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
28 - 2011-03-18 2019-05-23 10 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
crc32c.h
in util
 19 3 2011-03-18 2020-04-29 10 7 jorlow@chromium.org@62dab49... costan@google.com
17 - 2011-03-18 2019-05-23 9 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
12 - 2011-03-18 2019-05-23 10 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
merger.h
in table
 9 - 2011-03-18 2019-05-23 9 7 jorlow@chromium.org@62dab49... sjingivan@gmail.com
memenv.cc
in helpers/memenv
 300 33 2011-09-12 2020-04-29 18 8 hans@chromium.org costan@google.com
251 8 2011-03-18 2020-04-29 10 8 jorlow@chromium.org@62dab49... costan@google.com
201 10 2011-03-18 2020-04-29 14 8 jorlow@chromium.org@62dab49... costan@google.com
111 15 2011-03-18 2019-05-23 16 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
80 3 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
79 8 2011-03-18 2020-01-08 14 8 jorlow@chromium.org@62dab49... costan@google.com
coding.h
in util
 72 4 2011-03-18 2020-04-13 16 8 jorlow@chromium.org@62dab49... costan@google.com
60 3 2011-03-18 2019-05-23 12 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com
slice.h
in include/leveldb
 59 7 2011-03-30 2020-04-29 14 8 jorlow@chromium.org@62dab49... costan@google.com
logging.cc
in util
 59 5 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
format.h
in table
 52 7 2011-03-18 2020-04-29 15 8 jorlow@chromium.org@62dab49... costan@google.com
iterator.h
in include/leveldb
 41 2 2011-03-30 2019-05-23 15 8 jorlow@chromium.org@62dab49... sjingivan@gmail.com