История изменений
Исправление DenisPA, (текущая версия) :
sudo perf top -a -d 1 -v
В приоритете copy_user_generic_string
mmap size 528384B
Looking at the vmlinux_path (6 entries long)
Using /proc/kcore for kernel object code
Using /proc/kallsyms for symbols
Failed to open /tmp/.gll7xnLp, continuing without symbols
Failed to open /tmp/perf-2271.map, continuing without symbols
Failed to open /tmp/perf-2405.map, continuing without symbols
PerfTop: 1580 irqs/sec kernel:49.1% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
-------------------------------------------------------------------------------
6.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x8b83a
3.84% /proc/kcore 0x7fff8139599c
3.17% /lib/x86_64-linux-gnu/libc-2.19.so 0x870ca
2.38% /proc/kcore 0x7fff810f14b3
2.23% /proc/kcore 0x7fff81392d9a
2.08% /proc/kcore 0x7fff813921ad
1.84% /lib/x86_64-linux-gnu/libc-2.19.so 0x7fd98
1.59% /tmp/perf-vdso.so-l2EsRy 0xfcf
1.51% /lib/x86_64-linux-gnu/libc-2.19.so 0x8bcf3
1.46% /proc/kcore 0x7fff813955c7
1.43% /proc/kcore 0x7fff81391415
1.28% /proc/kcore 0x7fff810f09b5
1.08% /proc/kcore 0x7fff81394630
1.07% /proc/kcore 0x7fff8139377d
1.02% /lib/x86_64-linux-gnu/libc-2.19.so 0x6ef60
0.92% /proc/kcore 0x7fff81394ad0
0.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x83271
0.74% /proc/kcore 0x7fff81396c70
0.72% /usr/lib/linux-lts-utopic-tools-3.16.0-48/perf 0x94c0c
0.68% /lib/x86_64-linux-gnu/libc-2.19.so 0x97fd0
Исправление DenisPA, :
sudo perf top -a -d 1 -v
mmap size 528384B
Looking at the vmlinux_path (6 entries long)
Using /proc/kcore for kernel object code
Using /proc/kallsyms for symbols
Failed to open /tmp/.gll7xnLp, continuing without symbols
Failed to open /tmp/perf-2271.map, continuing without symbols
Failed to open /tmp/perf-2405.map, continuing without symbols
PerfTop: 1580 irqs/sec kernel:49.1% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
-------------------------------------------------------------------------------
6.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x8b83a
3.84% /proc/kcore 0x7fff8139599c
3.17% /lib/x86_64-linux-gnu/libc-2.19.so 0x870ca
2.38% /proc/kcore 0x7fff810f14b3
2.23% /proc/kcore 0x7fff81392d9a
2.08% /proc/kcore 0x7fff813921ad
1.84% /lib/x86_64-linux-gnu/libc-2.19.so 0x7fd98
1.59% /tmp/perf-vdso.so-l2EsRy 0xfcf
1.51% /lib/x86_64-linux-gnu/libc-2.19.so 0x8bcf3
1.46% /proc/kcore 0x7fff813955c7
1.43% /proc/kcore 0x7fff81391415
1.28% /proc/kcore 0x7fff810f09b5
1.08% /proc/kcore 0x7fff81394630
1.07% /proc/kcore 0x7fff8139377d
1.02% /lib/x86_64-linux-gnu/libc-2.19.so 0x6ef60
0.92% /proc/kcore 0x7fff81394ad0
0.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x83271
0.74% /proc/kcore 0x7fff81396c70
0.72% /usr/lib/linux-lts-utopic-tools-3.16.0-48/perf 0x94c0c
0.68% /lib/x86_64-linux-gnu/libc-2.19.so 0x97fd0
Исходная версия DenisPA, :
sudo perf top -a -d 1 -v
mmap size 528384B
Looking at the vmlinux_path (6 entries long)
Using /proc/kcore for kernel object code
Using /proc/kallsyms for symbols
Failed to open /tmp/.gll7xnLp, continuing without symbols
Failed to open /tmp/perf-2271.map, continuing without symbols
Failed to open /tmp/perf-2405.map, continuing without symbols
PerfTop: 1580 irqs/sec kernel:49.1% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
-------------------------------------------------------------------------------
6.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x8b83a
3.84% /proc/kcore 0x7fff8139599c
3.17% /lib/x86_64-linux-gnu/libc-2.19.so 0x870ca
2.38% /proc/kcore 0x7fff810f14b3
2.23% /proc/kcore 0x7fff81392d9a
2.08% /proc/kcore 0x7fff813921ad
1.84% /lib/x86_64-linux-gnu/libc-2.19.so 0x7fd98
1.59% /tmp/perf-vdso.so-l2EsRy 0xfcf
1.51% /lib/x86_64-linux-gnu/libc-2.19.so 0x8bcf3
1.46% /proc/kcore 0x7fff813955c7
1.43% /proc/kcore 0x7fff81391415
1.28% /proc/kcore 0x7fff810f09b5
1.08% /proc/kcore 0x7fff81394630
1.07% /proc/kcore 0x7fff8139377d
1.02% /lib/x86_64-linux-gnu/libc-2.19.so 0x6ef60
0.92% /proc/kcore 0x7fff81394ad0
0.76% /lib/x86_64-linux-gnu/libc-2.19.so 0x83271
0.74% /proc/kcore 0x7fff81396c70
0.72% /usr/lib/linux-lts-utopic-tools-3.16.0-48/perf 0x94c0c
0.68% /lib/x86_64-linux-gnu/libc-2.19.so 0x97fd0
PerfTop: 4569 irqs/sec kernel:60.6% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
-------------------------------------------------------------------------------
5.10% /proc/kcore 0x7fff8139599c
2.70% /lib/x86_64-linux-gnu/libc-2.19.so 0x8b83a
2.30% /tmp/perf-vdso.so-l2EsRy 0xfcf
1.43% /lib/x86_64-linux-gnu/libc-2.19.so 0x870ca
1.35% /lib/x86_64-linux-gnu/libc-2.19.so 0x7fd98
0.95% /lib/x86_64-linux-gnu/libc-2.19.so 0x7f081
0.94% /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0 0x8a61a
0.87% /proc/kcore 0x7fff8177020b
0.80% /proc/kcore 0x7fff81392d9a
0.79% /proc/kcore 0x7fff810f14b3
0.74% /proc/kcore 0x7fff813921ad
0.72% /proc/kcore 0x7fff813955c7
0.69% /proc/kcore 0x7fff811eb534
0.61% /proc/kcore 0x7fff81701066
0.60% /usr/lib/x86_64-linux-gnu/libQtGui.so.4.8.6 0x1c0f8c
0.60% /proc/kcore 0x7fff8116d4a2
0.55% /lib/x86_64-linux-gnu/libc-2.19.so 0x8bcf3
0.52% /lib/x86_64-linux-gnu/libpthread-2.19.so 0xa5c0
0.50% /proc/kcore 0x7fff81391415
0.43% /lib/x86_64-linux-gnu/libc-2.19.so 0x827c1
PerfTop: 4299 irqs/sec kernel:65.7% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
-------------------------------------------------------------------------------
5.46% /proc/kcore 0x7fff8139599c
2.15% /tmp/perf-vdso.so-l2EsRy 0xfcf
1.63% /lib/x86_64-linux-gnu/libc-2.19.so 0x8b83a
1.25% /lib/x86_64-linux-gnu/libc-2.19.so 0x7fd98
1.17% /lib/x86_64-linux-gnu/libglib-2.0.so.0.4002.0 0x8a61a
0.95% /lib/x86_64-linux-gnu/libc-2.19.so 0x870ca
0.88% /lib/x86_64-linux-gnu/libc-2.19.so 0x7f081
0.75% /proc/kcore 0x7fff8177020b
0.67% /proc/kcore 0x7fff811eb534
0.63% /proc/kcore 0x7fff81701066
0.61% /proc/kcore 0x7fff8116d4a2
0.55% /proc/kcore 0x7fff813955c7
0.53% /proc/kcore 0x7fff810b759a
0.53% /proc/kcore 0x7fff81392d9a
0.52% /lib/x86_64-linux-gnu/libpthread-2.19.so 0xa5c0
0.48% /usr/lib/x86_64-linux-gnu/libQtCore.so.4.8.6 0x1917e8
0.46% /proc/kcore 0x7fff810f14b3
0.45% /proc/kcore 0x7fff817705b3
0.44% /lib/x86_64-linux-gnu/libc-2.19.so 0x827c1
0.43% /proc/kcore 0x7fff813921ad