TiDB Cloud Performance Reference
This document provides Sysbench performance test results of different TiDB cluster scales, which can be used as a reference when you determine the cluster size.
In this document, the transaction models Read Only, Read Write, and Write Only represent read workloads, mixed workloads, and write workloads.
4 vCPU performance
Test scales:
- TiDB (4 vCPU, 16 GiB) * 1; TiKV (4 vCPU, 16 GiB) * 3
- TiDB (4 vCPU, 16 GiB) * 2; TiKV (4 vCPU, 16 GiB) * 3
Test results:
TiDB (4 vCPU, 16 GiB) * 1; TiKV (4 vCPU, 16 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 35 | 8,064.89 | 504.06 | 69.43 | 104.84 |
| Read Write | 25 | 6,747.60 | 337.38 | 74.10 | 102.97 |
| Write Only | 90 | 8,805.21 | 1,467.53 | 61.32 | 99.33 |
TiDB (4 vCPU, 16 GiB) * 2; TiKV (4 vCPU, 16 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 65 | 16,805.76 | 1,050.36 | 61.88 | 95.81 |
| Read Write | 45 | 12,940.36 | 647.02 | 69.55 | 99.33 |
| Write Only | 200 | 19,265.93 | 3,210.99 | 62.28 | 102.97 |
8 vCPU performance
Test scales:
- TiDB (8 vCPU, 16 GiB) * 2; TiKV (8 vCPU, 32 GiB) * 3
- TiDB (8 vCPU, 16 GiB) * 4; TiKV (8 vCPU, 32 GiB) * 3
- TiDB (8 vCPU, 16 GiB) * 4; TiKV (8 vCPU, 32 GiB) * 6
- TiDB (8 vCPU, 16 GiB) * 6; TiKV (8 vCPU, 32 GiB) * 9
- TiDB (8 vCPU, 16 GiB) * 9; TiKV (8 vCPU, 32 GiB) * 6
- TiDB (8 vCPU, 16 GiB) * 12; TiKV (8 vCPU, 32 GiB) * 9
Test results:
TiDB (8 vCPU, 16 GiB) * 2; TiKV (8 vCPU, 32 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 150 | 37,863.64 | 2,366.48 | 63.38 | 99.33 |
| Read Write | 100 | 30,218.42 | 1,510.92 | 66.18 | 94.10 |
| Write Only | 350 | 30,763.72 | 5,127.29 | 68.26 | 104.84 |
TiDB (8 vCPU, 16 GiB) * 4; TiKV (8 vCPU, 32 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 300 | 74,190.40 | 4,636.90 | 64.69 | 104.84 |
| Read Write | 200 | 53,351.84 | 2,667.59 | 74.97 | 97.55 |
| Write Only | 400 | 36,036.40 | 5,926.66 | 67.49 | 95.81 |
TiDB (8 vCPU, 16 GiB) * 4; TiKV (8 vCPU, 32 GiB) * 6
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 300 | 75,713.04 | 4,732.06 | 63.39 | 102.97 |
| Read Write | 200 | 62,640.62 | 3,132.03 | 63.85 | 95.81 |
| Write Only | 750 | 73,840.22 | 12,306.70 | 60.93 | 104.84 |
TiDB (8 vCPU, 16 GiB) * 6; TiKV (8 vCPU, 32 GiB) * 9
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 450 | 113,407.94 | 7,088.00 | 63.48 | 104.84 |
| Read Write | 300 | 92,387.31 | 4,619.37 | 64.93 | 99.33 |
| Write Only | 1100 | 112,631.72 | 18,771.95 | 58.59 | 99.33 |
TiDB (8 vCPU, 16 GiB) * 9; TiKV (8 vCPU, 32 GiB) * 6
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 650 | 168,486.65 | 10,530.42 | 61.72 | 101.13 |
| Read Write | 400 | 106,853.63 | 5,342.68 | 74.86 | 101.13 |
| Write Only | 950 | 88,461.20 | 14,743.53 | 64.42 | 102.97 |
TiDB (8 vCPU, 16 GiB) * 12; TiKV (8 vCPU, 32 GiB) * 9
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 800 | 211,882.77 | 13,242.67 | 60.40 | 101.13 |
| Read Write | 550 | 139,393.46 | 6,969.67 | 78.90 | 104.84 |
| Write Only | 1500 | 139,330.14 | 23,221.69 | 64.58 | 99.33 |
16 vCPU performance
Test scales:
- TiDB (16 vCPU, 32 GiB) * 1; TiKV (16 vCPU, 64 GiB) * 3
- TiDB (16 vCPU, 32 GiB) * 2; TiKV (16 vCPU, 64 GiB) * 3
Test results:
TiDB (16 vCPU, 32 GiB) * 1; TiKV (16 vCPU, 64 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 125 | 37448.41 | 2340.53 | 53.40 | 89.16 |
| Read Write | 100 | 28903.99 | 1445.20 | 69.19 | 104.84 |
| Write Only | 400 | 40878.68 | 6813.11 | 58.71 | 101.13 |
TiDB (16 vCPU, 32 GiB) * 2; TiKV (16 vCPU, 64 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 300 | 77238.30 | 4827.39 | 62.14 | 102.97 |
| Read Write | 200 | 58241.15 | 2912.06 | 68.67 | 97.55 |
| Write Only | 700 | 68829.89 | 11471.65 | 61.01 | 101.13 |
32 vCPU performance
Test scales:
- TiDB (32 vCPU, 64 GiB) * 1; TiKV (32 vCPU, 128 GiB) * 3
- TiDB (32 vCPU, 64 GiB) * 2; TiKV (32 vCPU, 128 GiB) * 3
Test results:
TiDB (32 vCPU, 64 GiB) * 1; TiKV (32 vCPU, 128 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 300 | 83941.16 | 5246 | 57.20 | 87.6 |
| Read Write | 250 | 71290.31 | 3565 | 70.10 | 105.0 |
| Write Only | 700 | 72199.56 | 12033 | 58.20 | 101.0 |
TiDB (32 vCPU, 64 GiB) * 2; TiKV (32 vCPU, 128 GiB) * 3
| Transaction model | Threads | QPS | TPS | Average latency (ms) | P95 latency (ms) |
|---|---|---|---|---|---|
| Read Only | 650 | 163101.68 | 10194 | 63.8 | 99.3 |
| Read Write | 450 | 123152.74 | 6158 | 73.1 | 101 |
| Write Only | 1200 | 112333.16 | 18722 | 64.1 | 101 |