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Also see my replies inline. From: Hongtao Yu <hoy at fb.com> Date: Saturday, August 8, 2020 at 11:25 AM To: Xinliang David Li <davidxl at google.com> Cc: Wenlei He <wenlei at fb.com>, "llvm-dev at lists.llvm.org" <llvm-dev at lists.llvm.org>, Wei Mi <wmi at google.com> Subject: Re: [RFC] Context-sens...

On Fri, Aug 7, 2020 at 11:28 PM Hongtao Yu <hoy at fb.com> wrote: > A few add-ons. > > > > *From: *Wenlei He <wenlei at fb.com> > *Date: *Friday, August 7, 2020 at 10:34 PM > *To: *Xinliang David Li <davidxl at google.com> > *Cc: *"llvm-dev at lists.llvm.org" <llvm-d...

...INLINE SITE // GUID of the inlinee (uint64) // Line number | Discriminator (ULEB128) // FUNCTION BODY // A FUNCTION BODY entry describing the inlined function. From: Rahman Lavaee <rahmanl at google.com> Date: Saturday, August 8, 2020 at 1:09 PM To: Hongtao Yu <hoy at fb.com> Cc: Wei Mi <wmi at google.com>, Wenlei He <wenlei at fb.com>, Xinliang David Li <davidxl at google.com>, "llvm-dev at lists.llvm.org" <llvm-dev at lists.llvm.org> Subject: Re: [llvm-dev] [RFC] Context-sensitive Sample PGO with Pseudo-Instru...

See my answers inline. From: Xinliang David Li <davidxl at google.com> Date: Friday, August 7, 2020 at 7:57 PM To: Wenlei He <wenlei at fb.com> Cc: "llvm-dev at lists.llvm.org" <llvm-dev at lists.llvm.org>, Wei Mi <wmi at google.com>, Hongtao Yu <hoy at fb.com> Subject: Re: [RFC] Context-sensitive Sample PGO with Pseudo-Instrumentation On Fri, Aug 7, 2020 at 4:44 PM Wenlei He <wenlei at fb.com<mailto:wenlei at fb.com>> wrote: Thanks for the thoughtful questions, David. See my answers inline. Thanks, Wenlei From: X...

...dependent transforms. Besides probing basic blocks, a probe can be used to probe each value site of interest. So far only direct/indirect call sites are supported. From: Rahman Lavaee <rahmanl at google.com> Date: Saturday, August 8, 2020 at 9:44 AM To: Wenlei He <wenlei at fb.com> Cc: Hongtao Yu <hoy at fb.com>, Wei Mi <wmi at google.com>, Xinliang David Li <davidxl at google.com>, "llvm-dev at lists.llvm.org" <llvm-dev at lists.llvm.org> Subject: Re: [llvm-dev] [RFC] Context-sensitive Sample PGO with Pseudo-Instrumentation Hi Wenlei and Hogtao, This s...

...tions, David. See my answers inline. Thanks, Wenlei From: Xinliang David Li <davidxl at google.com> Date: Friday, August 7, 2020 at 1:24 PM To: Wenlei He <wenlei at fb.com> Cc: "llvm-dev at lists.llvm.org" <llvm-dev at lists.llvm.org>, Wei Mi <wmi at google.com>, Hongtao Yu <hoy at fb.com> Subject: Re: [RFC] Context-sensitive Sample PGO with Pseudo-Instrumentation Wenlei, Thanks for the interesting proposal! please see my replies inline below. On Fri, Aug 7, 2020 at 11:28 AM Wenlei He <wenlei at fb.com<mailto:wenlei at fb.com>> wrote: Hi All, Ou...

...different from large workloads, we think the results demonstrated the potential of CSSPGO and served its purpose for proof of concept. We plan to continue tuning and start to evaluate larger internal workloads soon, and we’d like to upstream our work. Feedbacks are welcomed! Thanks, Wenlei & Hongtao -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20200807/580b8ac3/attachment-0001.html>

Hi all, Here I include an RFC for control flow sensitive AutoFDO (FS-AFDO). This is a joint work with David Li. Questions and feedback are welcome. Thanks, Rong ============= [RFC] Control Flow Sensitive AutoFDO (FS-AFDO) 1. Motivation AFDO profile is derived from PMU samples from running an earlier build binary. PMU samples are indexed by the IP addresses. An offline tool uses the debug

We would like to propose a new feature to disable optimizations on IR Functions that are considered “cold” by PGO profiles. The primary goal for this work is to improve code optimization speed (which also improves compilation and LTO speed) without making too much impact on target code performance. The mechanism is pretty simple: In the second phase (i.e. optimization phase) of PGO, we would add

...to make PGO/FDO both context-sensitive and flow-sensitive. I think the flow-sensitive part could also integrate with pseudo-probe, essentially we can append FS discriminator later multiple times the same way as you proposed here, except that the "line" part would be "probeId". +Hongtao as well. Thanks, Wenlei From: llvm-dev <llvm-dev-bounces at lists.llvm.org> Date: Tuesday, November 17, 2020 at 9:55 AM To: llvm-dev <llvm-dev at lists.llvm.org> Cc: David Li <davidxl at google.com> Subject: [llvm-dev] [RFC] Control Flow Sensitive AutoFDO (FS-AFDO) Hi all, Her...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <jdzheng@broadcom.com> Jiang Fang <j...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <jdzheng@broadcom.com> Jiang Fang <j...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiada Wang <jiada_wang@mentor.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiada Wang <jiada_wang@mentor.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <...

...es@virtuousgeek.org> (v2) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiada Wang <jiada_wang@mentor.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jian Yu <jian.yu@intel.com> Jianbin Kang <kjbmail...

...es@virtuousgeek.org> (v2) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jia Hongtao <hongtao.jia@freescale.com> Jiada Wang <jiada_wang@mentor.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jian Yu <jian.yu@intel.com> Jianbin Kang <kjbmail...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <jdzheng@broadcom.com> Jiang Liu <jiang.liu@huawei.com> Jiang Liu <liuj97@gm...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <jdzheng@broadcom.com> Jiang Liu <jiang.liu@huawei.com> Jiang Liu <liuj97@gm...

...es@virtuousgeek.org> (v1) Jesse Brandeburg <jesse.brandeburg@intel.com> Jesse Feddema <jdfeddema@gmail.com> Jesse Gross <jesse@nicira.com> Jesse Larrew <jlarrew@linux.vnet.ibm.com> Jett Zhou <jtzhou@marvell.com> Jett.Zhou <jtzhou@marvell.com> Jia Hongtao <B38951@freescale.com> Jiaju Zhang <jjzhang@suse.de> Jiajun Wu <b06378@freescale.com> Jialing Fu <jlfu@marvell.com> Jianbin Kang <kjbmail@gmail.com> Jiandong Zheng <jdzheng@broadcom.com> Jiang Liu <jiang.liu@huawei.com> Jiang Liu <liuj97@gm...