Is the Background Write the Job?

The OS doesn't really save to disk immediately. It stores it in the, in its own cache, right? And then you change another byte and imagine you don't have this cache, it will write it to disk. That will really issue so many IOs, right, to the desk. The background write that just writes to the OS is fine because it's not for dual ability. But yeah, so what the OS does is it all writes, they, they cache things in memory and hopes that it might receive more write.

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