*linecount* is a tool that simply counts the number of lines in a file, as fast as possible. It reads the file in large chunks into several threads and quickly scans the file for line endings.
*turbo-linecount* is a tool that simply counts the number of lines in a file, as fast as possible. It reads the file in large chunks into several threads and quickly scans the file for line endings.
Many times, you have to count the number of lines in text file on disk. The typical solution is to use 'wc -l' on the command line. 'wc' uses buffered streams to process the file, which has its advantages, but it is slower than direct memory mapped file access.
Many times, you have to count the number of lines in text file on disk. The typical solution is to use 'wc -l' on the command line. 'wc' uses buffered streams to process the file, which has its advantages, but it is slower than direct memory mapped file access. You can't 'pipe' to
How much faster is *linecount*? About 10 times faster than `wc` and 5 times faster than the naive Python implementation.
How much faster is *turbo-linecount*? About 8 times faster than `wc` and 5 times faster than the naive Python implementation.
To use *linecount*, just run the command line:
To use *turbo-linecount*, just run the command line:
```
lc <file>
```
where *\<file\>* is the path to the file of which you'd like to count the lines.
###Help
To get help with *linecount*:
To get help with *turbo-linecount*:
```
lc -h
@ -30,8 +31,9 @@ usage: lc [options] <file>
###Building
To build *linecount*, we use *cmake*. Cmake 3.3.0 is the preferred version as of this release. For building just the command line utility on Windows, a Visual Studio 2013 solution file is also included.
To build *turbo-linecount*, we use *cmake*. Cmake 3.0.0 or higher is the preferred version as of this release. For simplified building on Windows, a Visual Studio 2013 solution file is also included.
To build with *cmake*:
```
cd build
cmake ..
@ -39,24 +41,30 @@ make
make install
```
This will build and install the command line utility `lc`, a shared library `liblinecount`, a static library `liblinecount_static`, and a header file `linecount.h`.
This will build and install the command line utility `tlc`, a shared library `libturbo_linecount`, a static library `libturbo_linecount_static`, and a header file `turbo_linecount.h`.
Building *linecount* is known to be possible on
Building *turbo-linecount* is known to be possible on
```
Windows 32/64 bit
Mac OS X
Linux
Cygwin
```
###Testing
###Testing
Testing cmake against `wc` and `python` can be done with the test scripts. To generate some random test files, run `create_testfiles.sh`, and four test files, one 10MB, one 100MB, one 1GB, and one 10GB file will be created. Feel free to delete these when you're done testing to save space.
To run the test, run `compare_testfiles.sh`. This will generate output as such:
### Performance
Performance on Windows and Mac OS X is excellent for all file sizes. Performance on Linux and other operating systems is good, but can be better. Stay tuned.
Christien Rioux
9 years ago