epam / Zstandard
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 29 files with 5,403 lines of code.
    • 0 files changed more than 100 times (0 lines of code)
    • 0 files changed 51-100 times (0 lines of code)
    • 0 files changed 21-50 times (0 lines of code)
    • 0 files changed 6-20 times (0 lines of code)
    • 29 files changed 1-5 times (5,403 lines of code)
0% | 0% | 0% | 0% | 100%
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 29 files with 5,403 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 0 files changed by 11-25 contributors (0 lines of code)
    • 0 files changed by 6-10 contributors (0 lines of code)
    • 29 files changed by 2-5 contributors (5,403 lines of code)
    • 0 files changed by 1 contributor (0 lines of code)
0% | 0% | 0% | 100% | 0%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
cs, java, gradle, txt, gitignore, csproj, properties, gitattributes, ps1, bat, sh, cake, md, json, yaml
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
cs0% | 0% | 0% | 0% | 100%
java0% | 0% | 0% | 0% | 100%
ps10% | 0% | 0% | 0% | 100%
cake0% | 0% | 0% | 0% | 100%
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
csharp0% | 0% | 0% | 0% | 100%
java0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 29)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
ZstdDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 14 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FrameHeader.java
in java/src/main/java/com/epam/deltix/zstd
 15 1 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Util.java
in java/src/main/java/com/epam/deltix/zstd
 22 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Preconditions.java
in java/src/main/java/com/epam/deltix/zstd
 57 10 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FiniteStateEntropy.java
in java/src/main/java/com/epam/deltix/zstd
 126 4 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
BitStream.java
in java/src/main/java/com/epam/deltix/zstd
 127 16 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FseTableReader.java
in java/src/main/java/com/epam/deltix/zstd
 128 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
XxHash64.java
in java/src/main/java/com/epam/deltix/zstd
 218 25 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Huffman.java
in java/src/main/java/com/epam/deltix/zstd
 233 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
ZstdFrameDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 742 22 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
build.ps1
in csharp
 242 - 2021-05-04 2021-12-07 3 4 ypisarchyk@deltixlab.com adavydov@deltixlab.com
ZSTD_frameType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
blockType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZSTD_format_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Huf.cs
in csharp/src
 23 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FrameHeader.cs
in csharp/src
 34 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStd.cs
in csharp/src
 45 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdErrors.cs
in csharp/src
 47 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XXH64_state_s.cs
in csharp/src
 50 3 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
cake
build.cake
in csharp
 66 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Fse.cs
in csharp/src
 69 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdInternal.cs
in csharp/src
 89 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Mem.cs
in csharp/src
 99 14 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FseDecompress.cs
in csharp/src
 146 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
BitStream.cs
in csharp/src
 160 10 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
EntropyCommon.cs
in csharp/src
 181 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XxHash.cs
in csharp/src
 185 11 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
HufDecompress.cs
in csharp/src
 652 28 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdDecompress.cs
in csharp/src
 1591 57 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Files With Most Contributors (Top 29)
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
Preconditions.java
in java/src/main/java/com/epam/deltix/zstd
 57 10 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Util.java
in java/src/main/java/com/epam/deltix/zstd
 22 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FiniteStateEntropy.java
in java/src/main/java/com/epam/deltix/zstd
 126 4 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
ZstdFrameDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 742 22 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FrameHeader.java
in java/src/main/java/com/epam/deltix/zstd
 15 1 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FseTableReader.java
in java/src/main/java/com/epam/deltix/zstd
 128 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Huffman.java
in java/src/main/java/com/epam/deltix/zstd
 233 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
XxHash64.java
in java/src/main/java/com/epam/deltix/zstd
 218 25 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
ZstdDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 14 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
BitStream.java
in java/src/main/java/com/epam/deltix/zstd
 127 16 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
build.ps1
in csharp
 242 - 2021-05-04 2021-12-07 3 4 ypisarchyk@deltixlab.com adavydov@deltixlab.com
cake
build.cake
in csharp
 66 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZSTD_format_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
BitStream.cs
in csharp/src
 160 10 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Huf.cs
in csharp/src
 23 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Fse.cs
in csharp/src
 69 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdErrors.cs
in csharp/src
 47 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XXH64_state_s.cs
in csharp/src
 50 3 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
HufDecompress.cs
in csharp/src
 652 28 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FseDecompress.cs
in csharp/src
 146 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FrameHeader.cs
in csharp/src
 34 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XxHash.cs
in csharp/src
 185 11 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStd.cs
in csharp/src
 45 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdInternal.cs
in csharp/src
 89 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
blockType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdDecompress.cs
in csharp/src
 1591 57 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZSTD_frameType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Mem.cs
in csharp/src
 99 14 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
EntropyCommon.cs
in csharp/src
 181 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Files With Least Contributors (Top 29)
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
ZStdDecompress.cs
in csharp/src
 1591 57 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
HufDecompress.cs
in csharp/src
 652 28 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XxHash.cs
in csharp/src
 185 11 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
EntropyCommon.cs
in csharp/src
 181 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
BitStream.cs
in csharp/src
 160 10 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FseDecompress.cs
in csharp/src
 146 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Mem.cs
in csharp/src
 99 14 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdInternal.cs
in csharp/src
 89 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Fse.cs
in csharp/src
 69 4 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
cake
build.cake
in csharp
 66 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
XXH64_state_s.cs
in csharp/src
 50 3 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStdErrors.cs
in csharp/src
 47 2 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZStd.cs
in csharp/src
 45 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
FrameHeader.cs
in csharp/src
 34 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
Huf.cs
in csharp/src
 23 1 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZSTD_format_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
blockType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZSTD_frameType_e.cs
in csharp/src
 14 - 2021-05-04 2021-05-05 2 2 ypisarchyk@deltixlab.com alexander.karpovich@gmail.com
ZstdFrameDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 742 22 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
build.ps1
in csharp
 242 - 2021-05-04 2021-12-07 3 4 ypisarchyk@deltixlab.com adavydov@deltixlab.com
Huffman.java
in java/src/main/java/com/epam/deltix/zstd
 233 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
XxHash64.java
in java/src/main/java/com/epam/deltix/zstd
 218 25 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FseTableReader.java
in java/src/main/java/com/epam/deltix/zstd
 128 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
BitStream.java
in java/src/main/java/com/epam/deltix/zstd
 127 16 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FiniteStateEntropy.java
in java/src/main/java/com/epam/deltix/zstd
 126 4 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Preconditions.java
in java/src/main/java/com/epam/deltix/zstd
 57 10 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Util.java
in java/src/main/java/com/epam/deltix/zstd
 22 6 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
FrameHeader.java
in java/src/main/java/com/epam/deltix/zstd
 15 1 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
ZstdDecompressor.java
in java/src/main/java/com/epam/deltix/zstd
 14 2 2021-05-04 2021-12-07 4 4 ypisarchyk@deltixlab.com agdavydov81@gmail.com
Correlations

File Size vs. Number of Changes: 29 points

java/src/main/java/com/epam/deltix/zstd/ZstdDecompressor.java x: 14 lines of code y: 4 # changes csharp/build.ps1 x: 242 lines of code y: 3 # changes java/src/main/java/com/epam/deltix/zstd/BitStream.java x: 127 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/FiniteStateEntropy.java x: 126 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/FrameHeader.java x: 15 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/Huffman.java x: 233 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/Preconditions.java x: 57 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/Util.java x: 22 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/XxHash64.java x: 218 lines of code y: 4 # changes java/src/main/java/com/epam/deltix/zstd/ZstdFrameDecompressor.java x: 742 lines of code y: 4 # changes csharp/build.cake x: 66 lines of code y: 2 # changes csharp/src/BitStream.cs x: 160 lines of code y: 2 # changes csharp/src/EntropyCommon.cs x: 181 lines of code y: 2 # changes csharp/src/FrameHeader.cs x: 34 lines of code y: 2 # changes csharp/src/Fse.cs x: 69 lines of code y: 2 # changes csharp/src/FseDecompress.cs x: 146 lines of code y: 2 # changes csharp/src/Huf.cs x: 23 lines of code y: 2 # changes csharp/src/HufDecompress.cs x: 652 lines of code y: 2 # changes csharp/src/Mem.cs x: 99 lines of code y: 2 # changes csharp/src/XXH64_state_s.cs x: 50 lines of code y: 2 # changes csharp/src/XxHash.cs x: 185 lines of code y: 2 # changes csharp/src/ZSTD_format_e.cs x: 14 lines of code y: 2 # changes csharp/src/ZStd.cs x: 45 lines of code y: 2 # changes csharp/src/ZStdDecompress.cs x: 1591 lines of code y: 2 # changes csharp/src/ZStdErrors.cs x: 47 lines of code y: 2 # changes csharp/src/ZStdInternal.cs x: 89 lines of code y: 2 # changes
4.0
# changes
  min: 2.0
  average: 2.72
  25th percentile: 2.0
  median: 2.0
  75th percentile: 4.0
  max: 4.0
0 1591.0
lines of code
min: 14.0 | average: 186.31 | 25th percentile: 28.5 | median: 89.0 | 75th percentile: 183.0 | max: 1591.0

Number of Contributors vs. Number of Changes: 29 points

java/src/main/java/com/epam/deltix/zstd/ZstdDecompressor.java x: 4 # contributors y: 4 # changes csharp/build.ps1 x: 4 # contributors y: 3 # changes csharp/build.cake x: 2 # contributors y: 2 # changes
4.0
# changes
  min: 2.0
  average: 2.72
  25th percentile: 2.0
  median: 2.0
  75th percentile: 4.0
  max: 4.0
0 4.0
# contributors
min: 2.0 | average: 2.76 | 25th percentile: 2.0 | median: 2.0 | 75th percentile: 4.0 | max: 4.0

Number of Contributors vs. File Size: 29 points

java/src/main/java/com/epam/deltix/zstd/ZstdDecompressor.java x: 4 # contributors y: 14 lines of code csharp/build.ps1 x: 4 # contributors y: 242 lines of code java/src/main/java/com/epam/deltix/zstd/BitStream.java x: 4 # contributors y: 127 lines of code java/src/main/java/com/epam/deltix/zstd/Huffman.java x: 4 # contributors y: 233 lines of code java/src/main/java/com/epam/deltix/zstd/Preconditions.java x: 4 # contributors y: 57 lines of code java/src/main/java/com/epam/deltix/zstd/Util.java x: 4 # contributors y: 22 lines of code java/src/main/java/com/epam/deltix/zstd/XxHash64.java x: 4 # contributors y: 218 lines of code java/src/main/java/com/epam/deltix/zstd/ZstdFrameDecompressor.java x: 4 # contributors y: 742 lines of code csharp/build.cake x: 2 # contributors y: 66 lines of code csharp/src/BitStream.cs x: 2 # contributors y: 160 lines of code csharp/src/EntropyCommon.cs x: 2 # contributors y: 181 lines of code csharp/src/FrameHeader.cs x: 2 # contributors y: 34 lines of code csharp/src/Fse.cs x: 2 # contributors y: 69 lines of code csharp/src/FseDecompress.cs x: 2 # contributors y: 146 lines of code csharp/src/Huf.cs x: 2 # contributors y: 23 lines of code csharp/src/HufDecompress.cs x: 2 # contributors y: 652 lines of code csharp/src/Mem.cs x: 2 # contributors y: 99 lines of code csharp/src/XXH64_state_s.cs x: 2 # contributors y: 50 lines of code csharp/src/XxHash.cs x: 2 # contributors y: 185 lines of code csharp/src/ZSTD_format_e.cs x: 2 # contributors y: 14 lines of code csharp/src/ZStdDecompress.cs x: 2 # contributors y: 1591 lines of code csharp/src/ZStdInternal.cs x: 2 # contributors y: 89 lines of code
1591.0
lines of code
  min: 14.0
  average: 186.31
  25th percentile: 28.5
  median: 89.0
  75th percentile: 183.0
  max: 1591.0
0 4.0
# contributors
min: 2.0 | average: 2.76 | 25th percentile: 2.0 | median: 2.0 | 75th percentile: 4.0 | max: 4.0