Hi Constantine, I haven't tested the patch yet. But after reviewing the patch, I don't see anything related to BDI_CAP_STRICTLIMIT. So would you please explain a little bit more? Thanks. PS: I did try increasing FUSE_MAX_PAGES_PER_REQ, but it seemed not helping in my scenario(writeback cache enabled, 4K writes, total write size is not very large). Shuoran Liu -----邮件原件----- 发件人: Miklos Szeredi [mailto:miklos@xxxxxxxxxx] 发送时间: 2018年9月26日 17:20 收件人: Constantine Shulyupin <const@xxxxxxxxxxxxx> 抄送: open list:FUSE: FILESYSTEM IN USERSPACE <linux-fsdevel@xxxxxxxxxxxxxxx>; Jonathan Corbet <corbet@xxxxxxx>; 刘硕然 <liushuoran@xxxxxx>; mitsuo.hayasaka.hu@xxxxxxxxxxx; Amir Goldstein <amir73il@xxxxxxxxx> 主题: Re: [PATCH v4] fuse: add max_pages option On Wed, Sep 26, 2018 at 10:54 AM, Constantine Shulyupin <const@xxxxxxxxxxxxx> wrote: > Hi Miklos, > > Passed 20 days since the previous messages, so would you like to > review the patch? Yes. > I've added reproduction and measurement details up your request. > Also this patch can help resolve BDI_CAP_STRICTLIMIT performance issue > reported recently by liushuoran@xxxxxx. Do you have feedback from <liushuoran@xxxxxx> that this patch helps? Thanks, Miklos
