mdraid max sync speed

[eccerr0r]

Just wondering if anyone knows anything about this:

It appears the default sync_speed_max is 200000 and it has been this way for ever since at least I'm aware of mdraid - I've been using it for probably almost 2 decades by now.

Sync_speed_max is the maximum disk bandwidth it uses to check/rebuild/repair parity blocks on a RAID. It is in KB/sec.

200,000 KB/sec or 200MB/sec still exceeds the hard drive speeds that I have, some even far, far exceeds. which means it will completely eat out all available disk bandwidth. It's not until about now where SSDs can now exceed 200MB/sec. I suspect some HDDs finally can do it now too.

Has Linux always been designed for SSDs in mind or 2024 hard drives? :D

(My fastest sequential read hard drive is around 180MB/sec now... which is still too slow and thus will be fully consumed by default resync speeds. I just wonder why this 200000 was chosen back in the days...)

Also BTW, this isn't a bad thing as resilver is important as your redundancy is unavailable during this time, at least for RAID1/RAID5. But why 200000 and not simply "whatever bandwidth is available..." as when hard disks reach 300MB/sec there's redundancy left on the table...
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?