Messages in this thread | | | Subject | Re: [RFC PATCH v2 5/5] docs: ABI: Add sysfs documentation interface of hardware prefetch driver | From | Dave Hansen <> | Date | Sun, 7 Nov 2021 17:49:06 -0800 |
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On 11/7/21 5:29 PM, tarumizu.kohei@fujitsu.com wrote: >> How does this look in practice? > It works on a x86 machine is shown below: > > # find /sys/devices/system/cpu/cpu0/hwpf/ > /sys/devices/system/cpu/cpu0/hwpf/ > /sys/devices/system/cpu/cpu0/hwpf/l2 > /sys/devices/system/cpu/cpu0/hwpf/l2/enable > /sys/devices/system/cpu/cpu0/hwpf/l1 > /sys/devices/system/cpu/cpu0/hwpf/l1/enable > >> Dumb question, but why don't we give these things names? If the Intel one is >> called "L2 Hardware Prefetcher Disable", couldn't the directory be "l2_prefetch"? > There is no specific reason for directory names. We named it "l*" > because it is related to a certain cache level. We would change it, > if there is another suitable name.
Ahh, so you really do intend the l2 directory to be for *all* the L2 prefetchers? I guess that's OK, but will folks ever want to do "L2 Hardware Prefetcher Disable", but not "L2 Adjacent Cache Line Prefetcher Disable"?
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