Re: Slow unless on loopback

[Sebastian Lagemann]

Hi,

we made the same experience but it was related to the network latency, we have always 2 round-trips (send reserve, receive response, send delete, receive response). We also use beanstalkd thru wans connected via vpn between europe, usa and asia (latency up to 200ms one way).

So we were required to build our own library which is able to have hundreds of connection (non-blocking) per worker thread, beanstalkd works fine with the amount of connections if you don't forget to increase your number of max. open files. If you want we could share our php library for handling jobs in this way…

Best,

Sebastian

   

Am 17.12.2012 um 17:53 schrieb hagen....@madvertise.com:

Hi all,

I got a very strange behavior, I can't explain:

- Connecting over ethernet is about 10x slower than over loopback

- It can't be bandwidth related, as 10 parallel ethernet connections get about the performance of one loopback connection

- Verified with various machines and client languages

Anybody got an idea what this can be?

Thanks so much,

Hagen

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[hagen....@madvertise.com]

Hi,

 

we made the same experience but it was related to the network latency, we have always 2 round-trips (send reserve, receive response, send delete, receive response).

yes, you are absolutely right. Network latency can explain the slowness.

If you want we could share our php library for handling jobs in this way…

Thanks, but we don't use php. Fortunately, I was able fix the problem once I understood the problem :)

Cheers,

Hagen