# How much is Discourse affected by a faster CPU?

**URL:** https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407
**Category:** Self-hosting
**Tags:** hosting
**Created:** [5. März 2017 um 11:11 UTC](https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407 "2017-03-05T11:11:37Z")
**Posts on this page:** 1
**Showing post:** 30

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### Author: ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [15. Januar 2019 um 12:41 UTC](https://meta.discourse.org/t/how-much-is-discourse-affected-by-a-faster-cpu/58407/30 "2019-01-15T12:41:18Z")

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I got these boxes and they are nifty designs, a great step up in every way. Burning in overnight now.

This is a really nice, extremely compact layout! One thing that confused me is that the DIMMs are split: one goes on top half, the other goes on the bottom half.

### Bottom

 ![IMG_7518](https://global.discourse-cdn.com/meta/original/3X/b/1/b15c089be28d9eb5cd6f3f2226e03666843ee461.jpeg)

 ![IMG_7519](https://global.discourse-cdn.com/meta/original/3X/d/4/d46d913091e80eb1154b43f419cc5e5456209264.jpeg)

### Top

 ![IMG_7520](https://global.discourse-cdn.com/meta/original/3X/e/c/ec0cba33c91d281dc357416bb97a4f68e4cd7fb5.jpeg)

 ![IMG_7521](https://global.discourse-cdn.com/meta/original/3X/f/e/fe0f123816e283b4a06eb8e75e5839960e5e3948.jpeg)

You may notice in the second pic in each series, I removed stuff as well as installing memory and SSD. I pulled out the WiFi module and antennas, as well as the SATA bottom mount, since I don’t need it. It looks like there’s another full length NVMe port on the top side as well, which is amazing!

### CPU benchmarks

> ⚠ this newer version of sysbench produces different numbers, it is not comparable to old versions!

`sysbench cpu --cpu-max-prime=20000 run`

| | events |
| --- | --- |
| DO droplet | 2988 |
| 2017 scooter | 4800 |
| 2019 scooter | 5671 |

`sysbench cpu --cpu-max-prime=40000 --num-threads=8 run`

| | events |
| --- | --- |
| DO droplet | 2200 |
| 2017 scooter | 5588 |
| 2019 scooter | 14604 |

### Disk benchmarks

`ioping -RD -w 10 .`

| | iops | MiB/sec |
| --- | --- | --- |
| DO droplet | 13.7k | 53.4 |
| 2017 scooter | 13.6k | 53.2 |
| 2019 scooter | 14.9k | 58.0 |

`dd bs=1M count=512 if=/dev/zero of=test conv=fdatasync`  
`hdparm -Tt /dev/sda`

| | sequential | cached reads | buffered reads |
| --- | --- | --- | --- |
| DO droplet | 701 MB/sec | 8818 MB/sec | 471 MB/sec |
| 2017 scooter | 444 MB/sec | 12564 MB/sec | 505 MB/sec |
| 2019 scooter | 1.2 GB/sec | 17919 MB/sec | 3115 MB/sec |

### Discourse rebuild times

`time ./launcher rebuild app`

| | real | user | sys |
| --- | --- | --- | --- |
| DO droplet | 6:59 | 1.4s | 0.89s |
| 2017 scooter | 3:41 | 1.3s | 0.85s |
| 2019 scooter | 3:24 | 1.7s | 1.2s |

Thanks for the tip on the timing command @pfaffman!

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