Re: [PATCH] x86: Accelerate copy_page with non-temporal in X86
Kemeng Shi <[email protected]> Wed, 14 Apr 2021 13:25:20 +0800
| Newsgroups | org.01.lists.linux-nvdimm,dev.linux.lists.nvdimm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
on 2021/4/13 22:53, Borislav Petkov wrote: > I thought "should be better" too last time when I measured rep; movs vs > NT stores but actual measurements showed no real difference. Mabye the NT stores make difference when store to slow dimms, like the persistent memory I just tested. Also, it likely reduces unnecessary cache load and flush, and benifits the running processes which have data cached. -- Best wishes Kemeng Shi _______________________________________________ Linux-nvdimm mailing list -- [email protected] To unsubscribe send an email to [email protected]