17g · February 3, 2018 10:17
diff --git a/file0.txt b/file0.txt
 $ cargo -V
 cargo 0.24.0 (45043115c 2017-12-05)
 $ rustc -V
 rustc 1.23.0 (766bd11c8 2018-01-01)
diff --git a/file1.txt b/file1.txt
 Usage: rtail [options] FILE

 Options:
    -n NUMS             number of lines
    -h                  print help
diff --git a/file2.txt b/file2.txt
 $ time tail -n 10000 120000.log
 tail -n 10000 120000.log  0.06s user 0.02s system 30% cpu 0.251 total
diff --git a/file3.txt b/file3.txt
 $ time ./target/debug/rtail -n 10000 120000.log
 ./target/debug/rtail -n 10000 120000.log  0.63s user 1.15s system 90% cpu 1.979 total
diff --git a/file4.txt b/file4.txt
 $ time ./target/release/rtail -n 10000 120000.log
 ./target/release/rtail -n 10000 120000.log  0.26s user 1.14s system 87% cpu 1.591 total
diff --git a/file5.txt b/file5.txt
 $ time ./target/debug/rtail -n 10000 120000.log
 ./target/debug/rtail -n 10000 120000.log  0.09s user 0.01s system 70% cpu 0.132 total
diff --git a/file6.txt b/file6.txt
 $ time ./target/release/rtail -n 10000 120000.log
 ./target/release/rtail -n 10000 120000.log  0.00s user 0.01s system 7% cpu 0.205 total
	$ time tail -n 10000 120000.log
	tail -n 10000 120000.log 0.06s user 0.02s system 30% cpu 0.251 total
	$ time ./target/debug/rtail -n 10000 120000.log
	./target/debug/rtail -n 10000 120000.log 0.63s user 1.15s system 90% cpu 1.979 total
	$ time ./target/release/rtail -n 10000 120000.log
	./target/release/rtail -n 10000 120000.log 0.26s user 1.14s system 87% cpu 1.591 total