From 5caa262fdadae08f7c5af7f1328d424823811aaa Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Llu=C3=ADs=20Vilanova?= Date: Tue, 4 Jul 2017 10:54:52 +0200 Subject: trace: [trivial] Statically enable all guest events MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The existing optimizations makes it feasible to have them available on all builds. Some quick'n'dirty numbers with 400.perlbench (SPECcpu2006) on the train input (medium size - suns.pl) and the guest_mem_before event: * vanilla, statically disabled real 0m2,259s user 0m2,252s sys 0m0,004s * vanilla, statically enabled (overhead: 2.18x) real 0m4,921s user 0m4,912s sys 0m0,008s * multi-tb, statically disabled (overhead: 0.99x) [within noise range] real 0m2,228s user 0m2,216s sys 0m0,008s * multi-tb, statically enabled (overhead: 0.99x) [within noise range] real 0m2,229s user 0m2,224s sys 0m0,004s Now enabling all events when booting an ARM system that immediately shuts down (https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg04085.html): * vanilla, statically disabled real 0m32,153s user 0m31,276s sys 0m0,108s * vanilla, statically enabled (overhead: 1.35x) real 0m43,507s user 0m42,680s sys 0m0,168s * multi-tb, statically disabled (overhead: 1.03x) real 0m32,993s user 0m32,516s sys 0m0,104s * multi-tb, statically enabled (overhead: 1.00x) [within noise range] real 0m32,110s user 0m31,176s sys 0m0,156s And finally enabling all events using Emilio's dbt-bench (where orig == vanilla, new == multi-tb): NBench score; higher is better 180 +-+--------+----------+----------+---------+----------+----------+----------+----------+----------+---------+----------+--------+-+ | | | *** $$$$%% orig | 160 +-+....................................*.*.$..$.%............................................................orig-enabled +-+ | * * $ $ % new | 140 +-+....................................*.*.$..$.%............................................................new-disabled.......+-+ | * * $ $ % | | * * $ $ % | 120 +-+....................................*.*.$..$.%...............................................................................+-+ | * * $ $ % | | * * $ $ % | 100 +-+....................................*.*.$..$.%.....$$$%%%....................................................................+-+ | * * $ $ % *** $ $ % *** $$$%% | 80 +-+....................................*.*.$..$.%.*.*.$.$..%.*.*.$.$.%..........................................................+-+ | * * $ $ % * * $ $ % * * $ $ % | | * * $ $ % * * $ $ % * * $ $ % | 60 +-+.........................***..$$$%%.*.*##..$.%.*.*.$.$..%.*.*.$.$.%..***.$$$%%...............................................+-+ | **** $$$%% * * $ $ % * * # $ % * *## $ % * * $ $ % * * $ $ % | | * * $ $ % * * $ $ % * * # $ % * * # $ % * *## $ % * * $ $ % | 40 +-+..............*..*.$.$.%.*.*..$.$.%.*.*.#..$.%.*.*.#.$..%.*.*.#.$.%..*.*.$.$.%...............................................+-+ | * * $ $ % * * $ $ % * * # $ % * * # $ % * * # $ % * *## $ % *** $$$%%% | 20 +-+....***.$$$%%.*..*##.$.%.*.*###.$.%.*.*.#..$.%.*.*.#.$..%.*.*.#.$.%..*.*.#.$.%..................................*.*.$.$..%...+-+ | * *## $ % * * # $ % * * # $ % * * # $ % * * # $ % * * # $ % * * # $ % * *## $ % | | * * # $ % * * # $ % * * # $ % * * # $ % * * # $ % * * # $ % * * # $ % ***###$$%% ***##$$$%% * * # $ % | 0 +-+----***##$$%%-****##$$%%-***###$$%%-***##$$$%%-***##$$%%%-***##$$%%--***##$$%%-****##$$%%-***###$$%%-***##$$$%%-***##$$%%%---+-+ NUMERIC SORTSTRING SORT BITFIEFP EMULATION ASSIGNMENT IDEA HUFFMAN FOURIER NEURLU DECOMPOSITION gmean png: http://imgur.com/a/8XG5S Signed-off-by: Lluís Vilanova Reviewed-by: Emilio G. Cota Signed-off-by: Emilio G. Cota Message-id: 149915849243.6295.4484103824675839071.stgit@frigg.lan Signed-off-by: Stefan Hajnoczi --- trace-events | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/trace-events b/trace-events index bae63fd..f9dbd7f 100644 --- a/trace-events +++ b/trace-events @@ -106,7 +106,7 @@ vcpu guest_cpu_reset(void) # # Mode: user, softmmu # Targets: TCG(all) -disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" +vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" # @num: System call number. # @arg*: System call argument value. @@ -115,7 +115,7 @@ disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x # # Mode: user # Targets: TCG(all) -disable vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7, uint64_t arg8) "num=0x%016"PRIx64" arg1=0x%016"PRIx64" arg2=0x%016"PRIx64" arg3=0x%016"PRIx64" arg4=0x%016"PRIx64" arg5=0x%016"PRIx64" arg6=0x%016"PRIx64" arg7=0x%016"PRIx64" arg8=0x%016"PRIx64 +vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7, uint64_t arg8) "num=0x%016"PRIx64" arg1=0x%016"PRIx64" arg2=0x%016"PRIx64" arg3=0x%016"PRIx64" arg4=0x%016"PRIx64" arg5=0x%016"PRIx64" arg6=0x%016"PRIx64" arg7=0x%016"PRIx64" arg8=0x%016"PRIx64 # @num: System call number. # @ret: System call result value. @@ -124,4 +124,4 @@ disable vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint # # Mode: user # Targets: TCG(all) -disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64 +vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64 -- cgit v1.1