Kubernetes dns performance test report

Abstract

This document is the report for Kubernetes DNS performance test plan

Environment description

This report is collected on the hardware described in Intel-Mirantis Performance-Team Lab #1.

Software

Kubernetes is installed using Kargo deployment tool on Ubuntu 16.04.1.

Node roles:

• node1: minion+master+etcd

• node2: minion+master+etcd

• node3: minion+etcd

• node4: minion

• node5: minion

• node6: minion

Software versions:

• OS: Ubuntu 16.04.1 LTS (Xenial Xerus)

• Kernel: 4.4.0-47-generic

• Docker: 1.13.0

• Kubernetes: v1.5.1+coreos.0 and v1.5.3+coreos.0

Reports

Test Case #1: Performing DNS queries

Launched script where every next run uses parameters from previous one, but number of req/sec increases on 50.

Detailed Stats

3 replicas of kubedns (v1.5.1)

Summary table performing DNS queries (v1.5.1)

# | Number of services		Requests per second	Attempts	Failed hosts	Success rate
1 | 1000		50	1000	0	100%
2 | 1000		100	1000	0	100%
3 | 1000		150	1000	7	99.3%
4 | 1000		200	1000	2	99.8%
5 | 1000		250	1000	32	96.8%
6 | 1000		300	1000	72	92.8%
7 | 1000		350	1000	85	91.5%
8 | 1000		400	1000	124	87.6%
9 | 1000		450	1000	75	92.5%
10 | 1000		500	1000	89	91.1%
11 | 1000		550	1000	142	85.8%
12 | 1000		600	1000	130	87%
13 | 1000		650	1000	234	76.6%
14 | 1000		700	1000	389	61.1%
15 | 1000		750	1000	179	82.1%
16 | 1000		800	1000	167	83.3%
17 | 1000		850	1000	513	48.7%
18 | 1000		900	1000	479	52.1%
19 | 1000		950	1000	176	82.4%
20 | 1000		1000	1000	622	37.8%

There was to increase performance for kubedns in new version Kubernetes(v1.5.3), therefore ran test again.

1 replicas of kubedns (v1.5.3)

Summary table performing DNS queries (v1.5.3)

# | Number of services		Requests per second	Attempts	Failed hosts	Success rate
1 | 1000		50	1000	0	100%
2 | 1000		100	1000	0	100%
3 | 1000		150	1000	0	100%
4 | 1000		200	1000	11	98.9%
5 | 1000		250	1000	0	100%
6 | 1000		300	1000	26	97.4%
7 | 1000		350	1000	31	96.9%
8 | 1000		400	1000	13	98.7%
9 | 1000		450	1000	92	90.8%
10 | 1000		500	1000	24	97.6%
11 | 1000		550	1000	98	90.2%
12 | 1000		600	1000	49	95.1%
13 | 1000		650	1000	226	77.4%
14 | 1000		700	1000	163	83.7%
15 | 1000		750	1000	5	99.5%
16 | 1000		800	1000	54	94.6%
17 | 1000		850	1000	178	82.2%
18 | 1000		900	1000	113	88.7%
19 | 1000		950	1000	150	85%
20 | 1000		1000	1000	27	97.3%

2 replicas of kubedns (v1.5.3)

Summary table performing DNS queries (v1.5.3)

# | Number of services		Requests per second	Attempts	Failed hosts	Success rate
1 | 1000		50	1000	0	100%
2 | 1000		100	1000	0	100%
3 | 1000		150	1000	0	100%
4 | 1000		200	1000	0	100%
5 | 1000		250	1000	0	100%
6 | 1000		300	1000	0	100%
7 | 1000		350	1000	0	100%
8 | 1000		400	1000	0	100%
9 | 1000		450	1000	0	100%
10 | 1000		500	1000	0	100%
11 | 1000		550	1000	0	100%
12 | 1000		600	1000	0	100%
13 | 1000		650	1000	0	100%
14 | 1000		700	1000	0	100%
15 | 1000		750	1000	0	100%
16 | 1000		800	1000	0	100%
17 | 1000		850	1000	0	100%
18 | 1000		900	1000	0	100%
19 | 1000		950	1000	0	100%
20 | 1000		1000	1000	0	100%

3 replicas of kubedns (v1.5.3)

Summary table performing DNS queries (v1.5.3)

# | Number of services		Requests per second	Attempts	Failed hosts	Success rate
1 | 1000		50	1000	0	100%
2 | 1000		100	1000	0	100%
3 | 1000		150	1000	0	100%
4 | 1000		200	1000	0	100%
5 | 1000		250	1000	0	100%
6 | 1000		300	1000	0	100%
7 | 1000		350	1000	0	100%
8 | 1000		400	1000	0	100%
9 | 1000		450	1000	0	100%
10 | 1000		500	1000	0	100%
11 | 1000		550	1000	0	100%
12 | 1000		600	1000	0	100%
13 | 1000		650	1000	0	100%
14 | 1000		700	1000	0	100%
15 | 1000		750	1000	0	100%
16 | 1000		800	1000	0	100%
17 | 1000		850	1000	0	100%
18 | 1000		900	1000	0	100%
19 | 1000		950	1000	0	100%
20 | 1000		1000	1000	0	100%
21 | 1000		1500	1000	0	100%
22 | 1000		2000	1000	0	100%
23 | 1000		2500	1000	0	100%
24 | 1000		3000	1000	0	100%
25 | 1000		3500	1000	0	100%