HTTP/2 load testing with Vegeta (opens in new tab)

(github.com)

62 pointstsenart10y ago15 comments

15 comments

14 comments · 5 top-level

brndn10y ago· 4 in thread

I was just about to start looking into some http load testing tools, so I am glad to see this come up. Do people recommend this tool? What are some competitors? Can you produce enough load from your average laptop to effectively load test a web server?

caleblloyd10y ago

I recommend Vegeta. It's super easy to configure and you can install it with a single binary. You can produce as much load as your Open File Descriptor limit, CPU/Memory, or Network pipe can handle using a single instance of this program.

bkeroack10y ago

I've used wrk[1] which is quite nice. My local macbook was able to completely saturate the service with ~20k req/sec.

1. https://github.com/wg/wrk

placeybordeaux10y ago

I've used both wrk and vegeta. wrk is a bit more flexible/mature, but vegeta has a somewhat nice interface and can be called as a library if you write go.

Both can be used to max out whatever your most limiting resource is.

sagichmal10y ago

Kubernetes team uses Vegeta in their 10,000,000 QPS load test.

http://blog.kubernetes.io/2016/03/1000-nodes-and-beyond-upda...

liopleurodon10y ago· 3 in thread

can't get to the page.

is the load over 9000?

tsenartOP10y ago

Unfortunately, Github was down for a bit. Back up!

it_learnses10y ago

your ref wasn't lost on me at least ;) Some trivia: that this was a mistranslation and in the original Japanese, it was "over 8000!"

astrange10y ago

It's not a mistranslation. Japanese tend to use "eight" to stand in for "a large number", but "nine" sounds cooler in English.

1 more reply

caleblloyd10y ago· 1 in thread

How does the HTTP/2 implementation work?

Does it open a single TCP connection, then fire all load testing requests over that connection, or does it open multiple TCP connections and spread the load testing requests over multiple connections?

tsenartOP10y ago

Author here. This is configurable with a combination of the -connections and -keepalive flags in the attack command.

Matthias24710y ago· 1 in thread

However it seems like only h2 (HTTP/2 over TLS) is supported and not h2c (HTTP/2 over TCP with upgrade handshake) or HTTP/2 with prior knowledge.

It's a bit unfortunate that because of the decision of the browser vendors to support only HTTP/2 over TLS (for valid reasons) now a lot of libraries and tools support only that mode. For lots of other applications HTTP/2 without TLS would be helpful too.

tsenartOP10y ago

This may be possible in a not so distant future. For background: - https://github.com/bradfitz/http2/issues/59 - https://github.com/golang/go/issues/14141

jgrahamc10y ago

Nice. I'll add to my list of tools for debugging and testing HTTP/2: https://blog.cloudflare.com/tools-for-debugging-testing-and-...

1 more reply

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15 comments

14 comments · 5 top-level

brndn10y ago· 4 in thread

caleblloyd10y ago

bkeroack10y ago

I've used wrk[1] which is quite nice. My local macbook was able to completely saturate the service with ~20k req/sec.

1. https://github.com/wg/wrk

placeybordeaux10y ago

I've used both wrk and vegeta. wrk is a bit more flexible/mature, but vegeta has a somewhat nice interface and can be called as a library if you write go.

Both can be used to max out whatever your most limiting resource is.

sagichmal10y ago

Kubernetes team uses Vegeta in their 10,000,000 QPS load test.

http://blog.kubernetes.io/2016/03/1000-nodes-and-beyond-upda...

liopleurodon10y ago· 3 in thread

can't get to the page.

is the load over 9000?

tsenartOP10y ago

Unfortunately, Github was down for a bit. Back up!

it_learnses10y ago

your ref wasn't lost on me at least ;) Some trivia: that this was a mistranslation and in the original Japanese, it was "over 8000!"

astrange10y ago

It's not a mistranslation. Japanese tend to use "eight" to stand in for "a large number", but "nine" sounds cooler in English.

1 more reply

caleblloyd10y ago· 1 in thread

How does the HTTP/2 implementation work?

tsenartOP10y ago

Author here. This is configurable with a combination of the -connections and -keepalive flags in the attack command.

Matthias24710y ago· 1 in thread

However it seems like only h2 (HTTP/2 over TLS) is supported and not h2c (HTTP/2 over TCP with upgrade handshake) or HTTP/2 with prior knowledge.

tsenartOP10y ago

This may be possible in a not so distant future. For background: - https://github.com/bradfitz/http2/issues/59 - https://github.com/golang/go/issues/14141

jgrahamc10y ago

Nice. I'll add to my list of tools for debugging and testing HTTP/2: https://blog.cloudflare.com/tools-for-debugging-testing-and-...

1 more reply

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