From: Lluís Vilanova <vilan...@ac.upc.edu>
The optimizations of this series makes it feasible to have them
available on all builds.
After this patchset we avoid the ~2X slowdown that enabling
TCG events used to incur, as shown in the bar chart below.
[orig==before; new==after]
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 <vilan...@ac.upc.edu>
[cota: add perf numbers]
Signed-off-by: Emilio G. Cota <c...@braap.org>
---
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
--
2.7.4
