WordPress “Max IO Speed” Issue

4K images could possibly exceed other limits like “upload_max_filesize”. But if the I/O speed really is the issue, the simplest solution is to use your browser’s network developer tool to throttle connection speed to simulate a mobile or poor internet connection. You’ll need to always have this tool open when performing uploads. This solution is even more attractive since it’s a temporary situation. Not ideal as a permanent solution.

For a permanent solution, #2 would be ideal, but I don’t think it’s possible with Python or PHP. I/O happens at a lower level. #1 would make it difficult to ensure your dev work is functioning properly, which leaves us with #3. I’m unsure if limiting POST request size would have a direct impact on I/O speed. It will help with upload_max_filesize and post_max_size, but not I/O speed itself.

I’ll look into the max filesize value, good call.

The main reason I believe it to be the IO speed is from another forum post that showcased images of the “IO” bar on the cPanel dashboard hitting 100% when they performed IO actions, and I was able to verify the same on our testing site.

Ideally this python script will be setup to run x times a day from a Windows server machine inside our network. I’ve considered running this on an Amazon AWS machine, but my calculations had it being costly to keep a machine running 24/7 for Python scripts, even if it was solely a Linux server. I’m unsure how I could configure browser controls onto such a machine, I’m less practiced at cloud hypervisors. I would guess the reason to consider going cloud would be the uptime and guarantee none of our local machines get knocked out in a thunderstorm or such.

I personally want to solve it using #2. #3 is an incredibly inefficient and imo overkill response to this limitation, and for #1 I do not want to just “hope” it doesn’t happen on other machines.

• This reply was modified 2 years, 8 months ago by bammichael.

I’m unaware of any way to throttle I/O with PHP. I don’t know enough about Python to even speculate. I don’t really even understand an I/O limitation in hosting. I thought it’s established as part of the TCP handshake. Why would a server accept a higher speed if there’s some sort of limitation? I looked at one of my client’s cPanel (not GoDaddy, but shared hosting). It doesn’t appear to have any sort of I/O limitation. There’s an overall bandwidth limitation per month, but no speed limitation I could see.

What happens when allowable I/O is exceeded? How are we expected to stay within the limit? A 1 MB file could exceed the limit if it’s pushed through in less than 0.1 sec. These are all rhetorical questions, I’m not expecting any answers. I’m unclear what a proper solution would entail. Whatever it might be, is it really worth developing such a solution for something that’s temporary?