I understand he's a kernel developer but to me this sounds exactly the same as people who kept repeating, since years:
"Don't create a ramdisk (a true, fixed size, one, that you prevent from ever getting to disk) because the (Linux) kernel is so good and so sentient that you won't gain anything by doing that"
Yet anyone compiling from scratch big projects made of thousands of source file know that it's much faster to write the compiled files to the ramdisk.
I can't tell how many times I've seen this argument between "pro 'kernel is sentient'" and "pro 'compile into a real ramdisk'" but I can tell you that, by experience (and it's hard to beat that), the ramdisk Just Works [TM] faster than the 'sentient kernel'.
"Don't create a ramdisk (a true, fixed size, one, that you prevent from ever getting to disk) because the (Linux) kernel is so good and so sentient that you won't gain anything by doing that"
Yet anyone compiling from scratch big projects made of thousands of source file know that it's much faster to write the compiled files to the ramdisk.
I can't tell how many times I've seen this argument between "pro 'kernel is sentient'" and "pro 'compile into a real ramdisk'" but I can tell you that, by experience (and it's hard to beat that), the ramdisk Just Works [TM] faster than the 'sentient kernel'.
So how is it different this time?