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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Bioshock Infinite and DiRT Showdown perform very poorly on any GPU with GCN >=1.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95474#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Bioshock Infinite and DiRT Showdown perform very poorly on any GPU with GCN >=1.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95474">bug 95474</a>
from <span class="vcard"><a class="email" href="mailto:0xe2.0x9a.0x9b@gmail.com" title="Jan Ziak <0xe2.0x9a.0x9b@gmail.com>"> <span class="fn">Jan Ziak</span></a>
</span></b>
<pre>(In reply to Alex Deucher from <a href="show_bug.cgi?id=95474#c2">comment #2</a>)
<span class="quote">> Can you identify what component caused the regression? mesa? llvm? kernel?</span >
Output from "perf report":
# Samples: 660K of event 'cycles'
# Event count (approx.): 568704142352
#
# Overhead Command Shared Object Symbol
9.94% G.26 radeonsi_dri.so [.] pb_cache_is_buffer_compat
2.51% G.26 libgcc_s.so.1 [.] __umoddi3
1.66% G.26 libc-2.22.so [.] _int_malloc
1.52% G.26 libc-2.22.so [.] _int_free
1.42% G.26 radeonsi_dri.so [.] radeon_drm_cs_add_buffer
1.22% bioshock.i386 radeonsi_dri.so [.] radeon_cs_context_cleanup
1.14% bioshock.i386 [kernel.vmlinux] [k]
reservation_object_add_shared_fence
1.02% G.26 libc-2.22.so [.] __libc_calloc
0.93% G.26 libpthread-2.22.so [.] pthread_mutex_lock
0.81% bioshock.i386 [kernel.vmlinux] [k] __ww_mutex_lock_interruptible
0.79% G.26 bioshock.i386 [.] 0x00000000001a8853
0.79% G.26 radeonsi_dri.so [.] pb_cache_reclaim_buffer
0.78% G.26 libpthread-2.22.so [.]
__pthread_mutex_unlock_usercnt
0.74% G.26 libc-2.22.so [.] malloc
0.72% bioshock.i386 radeonsi_dri.so [.]
radeon_drm_cs_emit_ioctl_oneshot
0.66% bioshock.i386 [radeon] [k] radeon_bo_list_validate
0.60% G.26 radeonsi_dri.so [.] __x86.get_pc_thunk.bx
0.56% G.26 bioshock.i386 [.] 0x00000000001a8e53
0.56% G.26 radeonsi_dri.so [.] set_add
0.55% G.26 radeonsi_dri.so [.] ir_expression::accept
0.54% bioshock.i386 [ttm] [k] ttm_bo_list_ref_sub
0.54% G.26 radeonsi_dri.so [.] _mesa_glsl_parse
0.53% G.26 radeonsi_dri.so [.] radeon_lookup_buffer
0.52% G.26 libc-2.22.so [.] __memcmp_sse4_2
0.48% G.26 radeonsi_dri.so [.] visit_list_elements
0.47% bioshock.i386 [kernel.vmlinux] [k]
reservation_object_reserve_shared
0.46% G.26 radeonsi_dri.so [.] si_reset_buffer_resources
0.45% G.26 radeonsi_dri.so [.] hash_table_search
0.45% bioshock.i386 [drm] [k] drm_gem_object_lookup
0.42% G.26 libc-2.22.so [.] malloc_consolidate
0.41% bioshock.i386 [radeon] [k] radeon_sync_fence
0.41% G.26 radeonsi_dri.so [.] set_search
0.40% G.26 radeonsi_dri.so [.]
u_default_transfer_inline_write
0.40% bioshock.i386 [ttm] [k] ttm_bo_add_to_lru
0.38% G.26 radeonsi_dri.so [.] st_validate_state
0.36% bioshock.i386 [ttm] [k] ttm_bo_del_from_lru</pre>
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