MTU 및 호스트 방화벽이 전송성능에 미치는 영향
실험환경
| 사양 | 비고 | |
|---|---|---|
| CPU | Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz | 4코어 4쓰레드 |
| 메모리 | 삼성 DDR4 2666MHz (PC4-21300) 16GB x 2 = 32GB | |
| 디스크 | 삼성 SSD 70 EVO Plus M.2 2280 (250GB) | DDR4 512MB 캐시 읽기 최대 3,400MB/s 쓰기 최대 1,500MB/s |
| 네트워크 | Intel X520-SR2 | 10G SFP+ |
| OS | CentOS Linux release 7.7.1908 (Core) | 리눅스 기본 네트워크 파라미터 이용 |
(Node A) – (Node B) 직렬 연결
테스트 결과
| 커널 파라미터 | 방화벽 | MTU | 메모리 → 메모리 전송 (iperf3) | 파일전송 (gridftp) | |
|---|---|---|---|---|---|
| CentOS7 기본 | ON | 1500 (기본) | 8.73Gbps | ||
| CentOS7 기본 | OFF | 1500 (기본) | 9.41Gbps | ||
| CentOS7 기본 | OFF | 9216 (9K) | 9.90Gbps |
iperf3 / CentOS7 기본 / 방화벽 ON / MTU 1500 / 8.73 Gbps 원본 펼치기
# iperf3 -c 10.0.0.1 -t 10 -O 5 Connecting to host 10.0.0.1, port 5201 [ 5] local 10.0.0.2 port 58690 connected to 10.0.0.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.02 GBytes 8.75 Gbits/sec 0 1.52 MBytes (omitted) [ 5] 1.00-2.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes (omitted) [ 5] 2.00-3.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes (omitted) [ 5] 3.00-4.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes (omitted) [ 5] 4.00-5.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes (omitted) [ 5] 0.00-1.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 1.00-2.00 sec 1.02 GBytes 8.73 Gbits/sec 0 1.52 MBytes [ 5] 2.00-3.00 sec 1.02 GBytes 8.73 Gbits/sec 0 1.52 MBytes [ 5] 3.00-4.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 4.00-5.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 5.00-6.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 6.00-7.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 7.00-8.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 8.00-9.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes [ 5] 9.00-10.00 sec 1.02 GBytes 8.72 Gbits/sec 0 1.52 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 10.2 GBytes 8.73 Gbits/sec 0 sender [ 5] 0.00-10.04 sec 10.2 GBytes 8.73 Gbits/sec receiver
iperf3 / CentOS7 기본 / 방화벽 OFF / MTU 1500 / 9.41 Gbps 원본 펼치기
# iperf3 -c 10.0.0.1 -t 10 -O 5 Connecting to host 10.0.0.1, port 5201 [ 5] local 10.0.0.2 port 58696 connected to 10.0.0.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.10 GBytes 9.48 Gbits/sec 0 2.50 MBytes (omitted) [ 5] 1.00-2.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes (omitted) [ 5] 2.00-3.00 sec 1.09 GBytes 9.41 Gbits/sec 0 2.50 MBytes (omitted) [ 5] 3.00-4.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes (omitted) [ 5] 4.00-5.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes (omitted) [ 5] 0.00-1.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 1.00-2.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 2.00-3.00 sec 1.10 GBytes 9.41 Gbits/sec 0 2.50 MBytes [ 5] 3.00-4.00 sec 1.09 GBytes 9.41 Gbits/sec 0 2.50 MBytes [ 5] 4.00-5.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 5.00-6.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 6.00-7.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 7.00-8.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes [ 5] 8.00-9.00 sec 1.09 GBytes 9.41 Gbits/sec 0 2.50 MBytes [ 5] 9.00-10.00 sec 1.10 GBytes 9.42 Gbits/sec 0 2.50 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 11.0 GBytes 9.41 Gbits/sec 0 sender [ 5] 0.00-10.04 sec 11.0 GBytes 9.41 Gbits/sec receiver
iperf3 / CentOS7 기본 / 방화벽 OFF / MTU 9216 (9K) / 9.90 Gbps 원본 펼치기
# iperf3 -c 10.0.0.1 -t 10 -O 5 Connecting to host 10.0.0.1, port 5201 [ 5] local 10.0.0.2 port 58700 connected to 10.0.0.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 1.16 GBytes 9.96 Gbits/sec 4 3.36 MBytes (omitted) [ 5] 1.00-2.00 sec 1.15 GBytes 9.91 Gbits/sec 2 3.36 MBytes (omitted) [ 5] 2.00-3.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes (omitted) [ 5] 3.00-4.00 sec 1.15 GBytes 9.90 Gbits/sec 1 3.36 MBytes (omitted) [ 5] 4.00-5.00 sec 1.15 GBytes 9.91 Gbits/sec 1 3.36 MBytes (omitted) [ 5] 0.00-1.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 1.00-2.00 sec 1.15 GBytes 9.91 Gbits/sec 0 3.36 MBytes [ 5] 2.00-3.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 3.00-4.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 4.00-5.00 sec 1.15 GBytes 9.91 Gbits/sec 0 3.36 MBytes [ 5] 5.00-6.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 6.00-7.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 7.00-8.00 sec 1.15 GBytes 9.91 Gbits/sec 0 3.36 MBytes [ 5] 8.00-9.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes [ 5] 9.00-10.00 sec 1.15 GBytes 9.90 Gbits/sec 0 3.36 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 11.5 GBytes 9.90 Gbits/sec 0 sender [ 5] 0.00-10.04 sec 11.6 GBytes 9.90 Gbits/sec receiver
참고
방화벽 ON / OFF
sudo systemctl stop firewalld # 방화벽 OFF sudo systemctl start firewalld # 방화벽 ON