Ask HN: What do you monitor on your servers?

Re:Ask HN: What do you monitor on your servers? by hinkley on Saturday August 17, 2024 @06:46PM (#41278640)

I need to find a really good intro to queuing theory to send people to. A full queue is a slow queue. You actually want to aim for about 65% utilization.

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Re:Ask HN: What do you monitor on your servers? by bayindirh on Saturday August 17, 2024 @06:50PM (#41278663)

Also, there was a formula for determining the optimal cache size. I forget the name all the time. IIRC, in the end, caching most popular 10 items was enough to respond to 95% of your queries without hitting the disk.

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Re:Ask HN: What do you monitor on your servers? by redxtech on Saturday August 17, 2024 @11:48PM (#41280001)

If the numbers from the phoenix project are to be trusted, a loose estimate is the time spent in queue is proportional to the ratio of utilized to unutilized resources. For example, 50% used & 50% unused is 50:50 = 1 unit of time. 99% used is 99:1 = 99 units of time.

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Re:Ask HN: What do you monitor on your servers? by Version467 on Sunday August 18, 2024 @12:40AM (#41280168)

This might be too basic, but I found this blog post to be an incredible introduction to queues: https://encore.dev/blog/queueing

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