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Code Issues Releases Wiki Activity

New measurements

This commit is contained in:
Dennis Schwerdel 2016-02-02 22:05:54 +01:00
parent c19e1fbf75
commit 693f9692a3
3 changed files with 46 additions and 14 deletions
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7
CHANGELOG.md
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@ -2,6 +2,13 @@
This project follows [semantic versioning](http://semver.org).
### UNRELEASED
- [added] Script for performance measurements
- [changed] Using display format for addresses
- [changed] Updated dependencies
- [changed] New measurements
### v0.4.3 (2016-02-02)
- [changed] Updated libsodium to 1.0.8

21
perf.sh Executable file
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@ -0,0 +1,21 @@
#!/bin/bash
DST=$1
echo
echo "----------"
echo "Throughput"
echo "----------"
for i in 0 1 2; do
iperf -c $DST -t 30
done
for size in 100 500 1000; do
echo
echo "--------------------"
echo "Latency ($size Bytes)"
echo "--------------------"
for i in 0 1 2 3 4; do
ping $DST -c 30000 -i 0.001 -s $size -U -q
done
done

32
performance.md
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@ -15,7 +15,7 @@ Receiver node:
* Realtek RTL8111/8168/8411 Gigabit Network
* Ubuntu 14.04 (Kernel 3.13.0-63-generic)
VpnCloud version: `VpnCloud v0.3.1, protocol version 1, libsodium 1.0.7 (AES256: true)`
VpnCloud version: `VpnCloud v0.4.3, protocol version 1, libsodium 1.0.8 (AES256: true)`
The sender runs the following command:
@ -35,13 +35,14 @@ $> top
For encrypted tests, `--shared-key test --crypto METHOD` is appended.
For increased MTU tests `mtu 7000` is used in `--ifup`.
### Throughput
The throughput is measured with the following command:
```
$> iperf -c DST -t 60
$> iperf -c DST -t 30
```
The test is run in 3 steps:
@ -50,19 +51,21 @@ The test is run in 3 steps:
* Encrypted throughput via VpnCloud (`DST` is `10.2.1.2`)
| Throughput test | Bandwidth | CPU usage (one core) |
| ----------------------------- | ------------- | -------------------- |
| Without VpnCloud | 920 Mbits/sec | - |
| Unencrypted VpnCloud | 883 Mbits/sec | 80% / 75% |
| Encrypted VpnCloud (ChaCha20) | 814 Mbits/sec | 90% / 90% |
| Encrypted VpnCloud (AES256) | 821 Mbits/sec | 85% / 85% |
| Throughput test | Bandwidth | CPU usage (one core) |
| --------------------------------------- | ------------- | -------------------- |
| Without VpnCloud | 920 Mbits/sec | - |
| Unencrypted VpnCloud | 882 Mbits/sec | 80% / 95% |
| Encrypted VpnCloud (ChaCha20) | 787 Mbits/sec | 90% / 90% |
| Encrypted VpnCloud (AES256) | 838 Mbits/sec | 85% / 85% |
| Unencrypted VpnCloud (MTU 7000) | 923 Mbits/sec | 75% / 75% |
| Encrypted VpnCloud (ChaCha20, MTU 7000) | 919 Mbits/sec | 75% / 75% |
| Encrypted VpnCloud (AES256, MTU 7000) | 926 Mbits/sec | 75% / 75% |
### Latency
The latency is measured with the following command:
```
$> ping DST -c 100000 -i 0.001 -s SIZE -U -q
$> ping DST -c 30000 -i 0.001 -s SIZE -U -q
```
For all the test, the best average RTT out of 3 runs is selected. The latency is
@ -71,15 +74,16 @@ assumed to be half of the RTT.
| Payload size | 100 bytes | 500 bytes | 1000 bytes |
| ----------------------------- | --------------- | --------------- | --------------- |
| Without VpnCloud | 156 µs | 164 µs | 171 µs |
| Unencrypted VpnCloud | 205 µs (+50 µs) | 220 µs (+61 µs) | 236 µs (+65 µs) |
| Encrypted VpnCloud (ChaCha20) | 222 µs (+17 µs) | 242 µs (+22 µs) | 258 µs (+22 µs) |
| Encrypted VpnCloud (AES256) | 216 µs (+15 µs) | 232 µs (+12 µs) | 250 µs (+14 µs) |
| Without VpnCloud | 159 µs | 166 µs | 174 µs |
| Unencrypted VpnCloud | 221 µs (+62 µs) | 231 µs (+65 µs) | 242 µs (+68 µs) |
| Encrypted VpnCloud (ChaCha20) | 235 µs (+14 µs) | 248 µs (+17 µs) | 262 µs (+20 µs) |
| Encrypted VpnCloud (AES256) | 227 µs ( +6 µs) | 238 µs ( +7 µs) | 255 µs (+13 µs) |
### Conclusion
* VpnCloud achieves over 850 MBit/s with default MTU settings.
* In encrypted mode, VpnCloud reaches over 800 MBit/s with default MTU settings.
* With increased MTU, VpnCloud reaches over 900 Mbit/s, encrypted and unencrypted.
* VpnCloud adds about 70µs to the latency.
* Encryption adds an additional latency up to 20µs.