Hi,all. I would like to know if it is possible to implement multi-level TLB on gem5 performance by modeling the latency of TLB. If so, which files or functions should I start with?

Yes, this is possible, and I believe it's already implemented for Arm. The best place to start is src/arch/<your architecture>/tlb.cc Cheers, Jason On Wed, Oct 28, 2020 at 1:27 AM Laney Laney via gem5-users < gem5-users(a)gem5.org> wrote: > Hi,all. I would like to know if it is possible to implement multi-level > TLB on gem5 performance by modeling the latency of TLB. If so, which files > or functions should I start with? > _______________________________________________ > gem5-users mailing list -- gem5-users(a)gem5.org > To unsubscribe send an email to gem5-users-leave(a)gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s >

Hi, Can anyone please tell me whether a multi-level TLB implementation is currently available for x86? Thanks Arun On Wed, Oct 28, 2020 at 9:01 PM Jason Lowe-Power via gem5-users < gem5-users@gem5.org> wrote: > Yes, this is possible, and I believe it's already implemented for Arm. > > The best place to start is src/arch/<your architecture>/tlb.cc > > Cheers, > Jason > > On Wed, Oct 28, 2020 at 1:27 AM Laney Laney via gem5-users < > gem5-users@gem5.org> wrote: > >> Hi,all. I would like to know if it is possible to implement multi-level >> TLB on gem5 performance by modeling the latency of TLB. If so, which files >> or functions should I start with? >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-leave@gem5.org >> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s >> > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s

There is not a multi-level TLB model in mainline gem5. Cheers, Jason On Thu, May 18, 2023 at 5:43 AM Arun Kavumkal via gem5-users < gem5-users@gem5.org> wrote: > Hi, > Can anyone please tell me whether a multi-level TLB implementation is > currently available for x86? > > Thanks > Arun > > On Wed, Oct 28, 2020 at 9:01 PM Jason Lowe-Power via gem5-users < > gem5-users@gem5.org> wrote: > >> Yes, this is possible, and I believe it's already implemented for Arm. >> >> The best place to start is src/arch/<your architecture>/tlb.cc >> >> Cheers, >> Jason >> >> On Wed, Oct 28, 2020 at 1:27 AM Laney Laney via gem5-users < >> gem5-users@gem5.org> wrote: >> >>> Hi,all. I would like to know if it is possible to implement multi-level >>> TLB on gem5 performance by modeling the latency of TLB. If so, which files >>> or functions should I start with? >>> _______________________________________________ >>> gem5-users mailing list -- gem5-users@gem5.org >>> To unsubscribe send an email to gem5-users-leave@gem5.org >>> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s >>> >> _______________________________________________ >> gem5-users mailing list -- gem5-users@gem5.org >> To unsubscribe send an email to gem5-users-leave@gem5.org >> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org >

Just for the sake of completeness (I know Arun asked about X86). There is a multi-level TLB for Arm; it is possible for other ISAs to implement the same, it requires a developer to move the translateAtomic/Timing methods from the TLB to the MMU Kind Regards Giacomo From: Jason Lowe-Power via gem5-users <gem5-users@gem5.org> Date: Thursday, 18 May 2023 at 16:38 To: The gem5 Users mailing list <gem5-users@gem5.org> Cc: Laney Laney <522808087@qq.com>, Arun Kavumkal <arunkp.online@gmail.com>, Jason Lowe-Power <jason@lowepower.com> Subject: [gem5-users] Re: Multi-level TLB is implemented in performance There is not a multi-level TLB model in mainline gem5. Cheers, Jason On Thu, May 18, 2023 at 5:43 AM Arun Kavumkal via gem5-users <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> wrote: Hi, Can anyone please tell me whether a multi-level TLB implementation is currently available for x86? Thanks Arun On Wed, Oct 28, 2020 at 9:01 PM Jason Lowe-Power via gem5-users <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> wrote: Yes, this is possible, and I believe it's already implemented for Arm. The best place to start is src/arch/<your architecture>/tlb.cc Cheers, Jason On Wed, Oct 28, 2020 at 1:27 AM Laney Laney via gem5-users <gem5-users@gem5.org<mailto:gem5-users@gem5.org>> wrote: Hi,all. I would like to know if it is possible to implement multi-level TLB on gem5 performance by modeling the latency of TLB. If so, which files or functions should I start with? _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org<mailto:gem5-users@gem5.org> To unsubscribe send an email to gem5-users-leave@gem5.org<mailto:gem5-users-leave@gem5.org> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org<mailto:gem5-users@gem5.org> To unsubscribe send an email to gem5-users-leave@gem5.org<mailto:gem5-users-leave@gem5.org> %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org<mailto:gem5-users@gem5.org> To unsubscribe send an email to gem5-users-leave@gem5.org<mailto:gem5-users-leave@gem5.org> IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

Thanks for your email. I will look into the "multi-level TLB for Arm" implementation Wish you a good day Arun On Thu, May 18, 2023 at 9:25 PM Giacomo Travaglini < Giacomo.Travaglini@arm.com> wrote: > Just for the sake of completeness (I know Arun asked about X86). > There is a multi-level TLB for Arm; it is possible for other ISAs to > implement the same, it requires a developer to move the > translateAtomic/Timing methods from the TLB to the MMU > > > > Kind Regards > > > > Giacomo > > > > *From: *Jason Lowe-Power via gem5-users <gem5-users@gem5.org> > *Date: *Thursday, 18 May 2023 at 16:38 > *To: *The gem5 Users mailing list <gem5-users@gem5.org> > *Cc: *Laney Laney <522808087@qq.com>, Arun Kavumkal < > arunkp.online@gmail.com>, Jason Lowe-Power <jason@lowepower.com> > *Subject: *[gem5-users] Re: Multi-level TLB is implemented in performance > > There is not a multi-level TLB model in mainline gem5. > > > > Cheers, > > Jason > > > > On Thu, May 18, 2023 at 5:43 AM Arun Kavumkal via gem5-users < > gem5-users@gem5.org> wrote: > > Hi, > > Can anyone please tell me whether a multi-level TLB implementation is > currently available for x86? > > > > Thanks > > Arun > > > > On Wed, Oct 28, 2020 at 9:01 PM Jason Lowe-Power via gem5-users < > gem5-users@gem5.org> wrote: > > Yes, this is possible, and I believe it's already implemented for Arm. > > > > The best place to start is src/arch/<your architecture>/tlb.cc > > > > Cheers, > > Jason > > > > On Wed, Oct 28, 2020 at 1:27 AM Laney Laney via gem5-users < > gem5-users@gem5.org> wrote: > > Hi,all. I would like to know if it is possible to implement multi-level > TLB on gem5 performance by modeling the latency of TLB. If so, which files > or functions should I start with? > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-leave@gem5.org > > IMPORTANT NOTICE: The contents of this email and any attachments are > confidential and may also be privileged. If you are not the intended > recipient, please notify the sender immediately and do not disclose the > contents to any other person, use it for any purpose, or store or copy the > information in any medium. Thank you. >