dsnvm_handle_receive_coherence

[liweiguang199609]

The "dsnvm_handle_receive_coherence" function is used to process the consistency command that the DN receives from ON in the second stage of the MRMW process, but there is no mention of local dirty page that has been modified. Is that right ? If the page has been modified locally, direct fetch operation will overwrite the page rather than allocating a new physical page.

[lastweek]

Hi @liweiguang199609,

Local dirty pages should be checked by scan_xact_pages()https://github.com/WukLab/Hotpot/blob/master/hotpot/xact.c#L2512, which will lookup PTE and do necessary actions. (The code was written long time ago, I only have vague memory about the details now.

[liweiguang199609]

Hi @liweiguang199609,

Local dirty pages should be checked by scan_xact_pages()https://github.com/WukLab/Hotpot/blob/master/hotpot/xact.c#L2512, which will lookup PTE and do necessary actions. (The code was written long time ago, I only have vague memory about the details now.

Hi lastweek,

Yeah, I looked at the function carefully, but I still didn't see the part of the operation mentioned in the paper.For example, if the xact being committed is version 1, and the dirty page in the DN is based on version 0 instead of version 1. It seems wrong to reserve the local dirty page , because the dirty page is based on the version of the old page.