[Mesa-dev] Profile-guides optimizations
Dylan Baker
dylan at pnwbakers.com
Thu Feb 13 18:44:03 UTC 2020
I actually spent a bunch of time toying with PGO a couple of years ago. I got
the guidance all working and was able to train it, but what we found was that it
made the specific workloads we threw at it much faster, but it made every real
world use case I tried (playing a game, running piglit, gnome) slower, often
significantly so.
The hard part is not setting up pgo, it's getting the right training data.
Dylan
Quoting Marek Olšák (2020-02-13 10:30:46)
> [Forked from the other thread]
>
> Guys, we could run some simple tests similar to piglit/drawoverhead as the last
> step of the pgo=generate build. Tests like that should exercise the most common
> codepaths in drivers. We could add subtests that we care about the most.
>
> Marek
>
> On Thu., Feb. 13, 2020, 13:16 Dylan Baker, <dylan at pnwbakers.com> wrote:
>
> meson has buildtins for both of these, -Db_lto=true turns on lto, for pgo
> you
> would run:
>
> meson build -Db_pgo=generate
> ninja -C build
> <run whatever guidance you want>
> meson configure build -Db_pgo=use
> ninja -C build
>
> Quoting Marek Olšák (2020-02-12 10:46:12)
> > How do you enable LTO+PGO? Is it something we could enable by default for
> > release builds?
> >
> > Marek
> >
> > On Wed, Feb 12, 2020 at 1:56 AM Dieter Nützel <Dieter at nuetzel-hh.de>
> wrote:
> >
> > Hello Gert,
> >
> > your merge 'broke' LTO and then later on PGO compilation/linking.
> >
> > I do generally compiling with '-Dgallium-drivers=
> r600,radeonsi,swrast'
> > for testing radeonsi and (your) r600 work. ;-)
> >
> > After your merge I get several warnings in 'addrlib' with LTO and
> even a
> > compiler error (gcc (SUSE Linux) 9.2.1 20200128).
> >
> > I had to disable 'r600' ('swrast' is needed for 'nine') to get a
> working
> > LTO and even better PGO radeonsi driver.
> > I'm preparing GREAT LTO+PGO (the later is the greater) numbers over
> the
> > last 2 months. I'll send my results later, today.
> >
> > Summary
> > radeonsi is ~40% smaller and 16-20% faster with PGO (!!!).
> >
> > Honza and the GCC people (Intel's ICC folks) do GREAT things.
> > 'glmark2' numbers are better then 'vkmark'. (Hello, Marek.).
> >
> > Need some sleep.
> >
> > See my log, below.
> >
> > Greetings and GREAT work!
> >
> > -Dieter
> >
> > Am 09.02.2020 15:46, schrieb Gert Wollny:
> > > Am Donnerstag, den 23.01.2020, 20:31 +0100 schrieb Gert Wollny:
> > >> has anybody any objections if I merge the r600/NIR code?
> > >> Without explicitely setting the debug flag it doesn't change a
> > >> thing, but it would be better to continue developing in-tree.
> > > Okay, if nobody objects, I'll merge it Monday evening.
> > >
> > > Best,
> > > Gert
> >
> > [1425/1433] Linking target src/gallium/targets/dri/libgallium_dri.so.
> > FAILED: src/gallium/targets/dri/libgallium_dri.so
> > c++ -o src/gallium/targets/dri/libgallium_dri.so
> > 'src/gallium/targets/dri/8381c20@@gallium_dri at sha/target.c.o' -flto
> > -fprofile-generate -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -shared
> > -fPIC -Wl,--start-group -Wl,-soname,libgallium_dri.so
> > src/mesa/libmesa_gallium.a src/mesa/libmesa_common.a
> > src/compiler/glsl/libglsl.a src/compiler/glsl/glcpp/libglcpp.a
> > src/util/libmesa_util.a src/util/format/libmesa_format.a
> > src/compiler/nir/libnir.a src/compiler/libcompiler.a
> > src/mesa/libmesa_sse41.a src/mesa/drivers/dri/common/libdricommon.a
> > src/mesa/drivers/dri/common/libmegadriver_stub.a
> > src/gallium/state_trackers/dri/libdri.a
> > src/gallium/auxiliary/libgalliumvl.a src/gallium/auxiliary/
> libgallium.a
> > src/mapi/shared-glapi/libglapi.so.0.0.0
> > src/gallium/auxiliary/pipe-loader/libpipe_loader_static.a
> > src/loader/libloader.a src/util/libxmlconfig.a
> > src/gallium/winsys/sw/null/libws_null.a
> > src/gallium/winsys/sw/wrapper/libwsw.a
> > src/gallium/winsys/sw/dri/libswdri.a
> > src/gallium/winsys/sw/kms-dri/libswkmsdri.a
> > src/gallium/drivers/llvmpipe/libllvmpipe.a
> > src/gallium/drivers/softpipe/libsoftpipe.a
> > src/gallium/drivers/r600/libr600.a
> > src/gallium/winsys/radeon/drm/libradeonwinsys.a
> > src/gallium/drivers/radeonsi/libradeonsi.a
> > src/gallium/winsys/amdgpu/drm/libamdgpuwinsys.a
> > src/amd/addrlib/libaddrlib.a src/amd/common/libamd_common.a
> > src/amd/llvm/libamd_common_llvm.a -Wl,--build-id=sha1
> -Wl,--gc-sections
> > -Wl,--version-script /opt/mesa/src/gallium/targets/dri/dri.sym
> > -Wl,--dynamic-list /opt/mesa/src/gallium/targets/dri/../dri-vdpau.dyn
> > /usr/lib64/libdrm.so -L/usr/local/lib -lLLVM-10git -pthread
> > /usr/lib64/libexpat.so
> > /usr/lib64/gcc/x86_64-suse-linux/9/../../../../lib64/libz.so -lm
> > /usr/lib64/gcc/x86_64-suse-linux/9/../../../../lib64/libzstd.so
> > -L/usr/local/lib -lLLVM-10git /usr/lib64/libunwind.so -ldl -lsensors
> > -L/usr/local/lib -lLLVM-10git /usr/lib64/libdrm_radeon.so
> > /usr/lib64/libelf.so -L/usr/local/lib -lLLVM-10git -L/usr/local/lib
> > -lLLVM-10git -L/usr/local/lib -lLLVM-10git /usr/lib64/
> libdrm_amdgpu.so
> > -L/usr/local/lib -lLLVM-10git -Wl,--end-group
> > '-Wl,-rpath,$ORIGIN/../../../mesa:$ORIGIN/../../../compiler/
> glsl:$ORIGIN/..
> > /../../compiler/glsl/glcpp:$ORIGIN/../../../util:$ORIGIN/../../../
> util/
> > format:$ORIGIN/../../../compiler/nir:$ORIGIN/../../../
> compiler:$ORIGIN/..
> > /../../mesa/drivers/dri/common:$ORIGIN/../../state_trackers/
> dri:$ORIGIN/..
> > /../auxiliary:$ORIGIN/../../../mapi/shared-glapi:$ORIGIN/../../
> auxiliary/
> > pipe-loader:$ORIGIN/../../../loader:$ORIGIN/../../winsys/sw/
> null:$ORIGIN/..
> > /../winsys/sw/wrapper:$ORIGIN/../../winsys/sw/dri:$ORIGIN/../../
> winsys/sw/
> > kms-dri:$ORIGIN/../../drivers/llvmpipe:$ORIGIN/../../drivers/
> > softpipe:$ORIGIN/../../drivers/r600:$ORIGIN/../../winsys/radeon/
> drm:$ORIGIN
> > /../../drivers/radeonsi:$ORIGIN/../../winsys/amdgpu/drm:$ORIGIN/../..
> /../
> > amd/addrlib:$ORIGIN/../../../amd/common:$ORIGIN/../../../amd/llvm'
> > -Wl,-rpath-link,/opt/mesa/build/src/mesa
> > -Wl,-rpath-link,/opt/mesa/build/src/compiler/glsl
> > -Wl,-rpath-link,/opt/mesa/build/src/compiler/glsl/glcpp
> > -Wl,-rpath-link,/opt/mesa/build/src/util
> > -Wl,-rpath-link,/opt/mesa/build/src/util/format
> > -Wl,-rpath-link,/opt/mesa/build/src/compiler/nir
> > -Wl,-rpath-link,/opt/mesa/build/src/compiler
> > -Wl,-rpath-link,/opt/mesa/build/src/mesa/drivers/dri/common
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/state_trackers/dri
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/auxiliary
> > -Wl,-rpath-link,/opt/mesa/build/src/mapi/shared-glapi
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/auxiliary/pipe-loader
> > -Wl,-rpath-link,/opt/mesa/build/src/loader
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/winsys/sw/null
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/winsys/sw/wrapper
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/winsys/sw/dri
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/winsys/sw/kms-dri
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/drivers/llvmpipe
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/drivers/softpipe
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/drivers/r600
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/winsys/radeon/drm
> > -Wl,-rpath-link,/opt/mesa/build/src/gallium/drivers/radeonsi
> > -Wl,-rpath-link,/opt/mesa/build/src/
> > gallium/winsys/amdgpu/drm
> > -Wl,-rpath-link,/opt/mesa/build/src/amd/addrlib
> > -Wl,-rpath-link,/opt/mesa/build/src/amd/common
> > -Wl,-rpath-link,/opt/mesa/build/src/amd/llvm
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > during IPA pass: materialize-all-clones
> > In function ‘operator<<.constprop’:
> > lto1: internal compiler error: in cgraph_add_edge_to_call_site_hash,
> at
> > cgraph.c:719
> > Please submit a full bug report,
> > with preprocessed source if appropriate.
> > See <https://bugs.opensuse.org/> for instructions.
> > lto-wrapper: fatal error: c++ returned 1 exit status
> > compilation terminated.
> > /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/
> ld:
> > error: lto-wrapper failed
> > collect2: error: ld returned 1 exit status
> > [1429/1433] Linking target
> > src/gallium/targets/pipe-loader/pipe_radeonsi.so.
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > [1430/1433] Linking target
> > src/gallium/targets/va/libgallium_drv_video.so.
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > [1431/1433] Linking target
> > src/gallium/targets/vdpau/libvdpau_gallium.so.1.0.0.
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > [1432/1433] Linking target src/amd/vulkan/libvulkan_radeon.so.
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > [1433/1433] Linking target
> > src/gallium/targets/d3dadapter9/d3dadapter9.so.1.0.0.
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: warning: type
> > ‘struct <anon>’ violates the C++ One Definition Rule [-Wodr]
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: a
> different
> > type is defined in another translation unit
> > 51 | {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:54:33: note: the first
> > difference of corresponding definitions is field
> ‘BANK_INTERLEAVE_SIZE’
> > 54 | unsigned int BANK_INTERLEAVE_SIZE : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:56:44: note: a field
> > with different name is defined in another translation unit
> > 56 | unsigned int NUM_PKRS : 3;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:48:7: warning: type
> > ‘union GB_ADDR_CONFIG’ violates the C++ One Definition Rule [-Wodr]
> > 48 | union GB_ADDR_CONFIG {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:48:7: note: a
> different
> > type is defined in another translation unit
> > 48 | union GB_ADDR_CONFIG
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:83:7: note: the first
> > difference of corresponding definitions is field ‘bitfields’
> > 83 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:65:7: note: a field
> of
> > same name but different type is defined in another translation unit
> > 65 | } bitfields, bits;
> > | ^
> > ../src/amd/addrlib/src/chip/gfx9/gfx9_gb_reg.h:49:12: note: type
> ‘struct
> > <anon>’ itself violates the C++ One Definition Rule
> > 49 | struct {
> > | ^
> > ../src/amd/addrlib/src/chip/gfx10/gfx10_gb_reg.h:51:5: note: the
> > incompatible type is defined here
> > 51 | {
> > | ^
> > ninja: build stopped: subcommand failed.
> > 3123.512u 166.581s 9:24.69 582.6% 0+0k 16+7235672io 0pf+0w
> >
>
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