Re: [gentoo-user] broadwell for kaby lake?
On Sat, Apr 22, 2017 at 4:31 PM, Adam Carter wrote: >> Thanks. I suppose it's just a gcc thing, then. I just emerged >> gcc-5.4.0 and the output is the same, though. > > > My skylake comes up as broadwell too, with gcc 5.4 > > Looks like gcc 6 has a skylake arch, but not a kabylake. > https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x86-Options > Thanks! Jorge
Re: [gentoo-user] broadwell for kaby lake?
> > Thanks. I suppose it's just a gcc thing, then. I just emerged > gcc-5.4.0 and the output is the same, though. > My skylake comes up as broadwell too, with gcc 5.4 Looks like gcc 6 has a skylake arch, but not a kabylake. https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gcc/x86-Options.html#x86-Options
Re: [gentoo-user] broadwell for kaby lake?
On Sat, Apr 22, 2017 at 2:41 PM, Poison BL. wrote: > On Sat, Apr 22, 2017 at 5:24 PM, Jorge Almeida wrote: > > While I don't have anything that new handy, the 6MB cache checks out against > intel's specs for the i5-7600. The broadwell i5-5675 lists off at a 4MB > cache (not including the eDRAM). GCC seems to like going with a slightly > more tried & true feature set when faced with a fancy, new, chip, in my > experience. Especially if the version of GCC in use isn't the absolute > bleeding edge latest and greatest. > Thanks. I suppose it's just a gcc thing, then. I just emerged gcc-5.4.0 and the output is the same, though. Jorge
Re: [gentoo-user] broadwell for kaby lake?
On Sat, Apr 22, 2017 at 5:24 PM, Jorge Almeida wrote:
>
> I have a new computer, assembled piece by piece, and the cpu is
> supposed to be an intel i5-7600 LGA1151. The original box says "7th
> generation".
>
> However:
>
> $ gcc -### -E - -march=native 2>&1 | sed -r '/cc1/!d;s/(")|(^.* - )//g'
> -march=broadwell -mmmx -mno-3dnow -msse -msse2 -msse3 -mssse3
> -mno-sse4a -mcx16 -msahf -mmovbe -maes -mno-sha -mpclmul -mpopcnt
> -mabm -mno-lwp -mfma -mno-fma4 -mno-xop -mbmi -mbmi2 -mno-tbm -mavx
> -mavx2 -msse4.2 -msse4.1 -mlzcnt -mrtm -mhle -mrdrnd -mf16c -mfsgsbase
> -mrdseed -mprfchw -madx -mfxsr -mxsave -mxsaveopt -mno-avx512f
> -mno-avx512er -mno-avx512cd -mno-avx512pf -mno-prefetchwt1 --param
> l1-cache-size=32 --param l1-cache-line-size=64 --param
> l2-cache-size=6144 -mtune=generic -fstack-protector-strong
>
>
> ?!
>
>
> $ cat /proc/cpuinfo
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 158
> model name : Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
> stepping: 9
> microcode : 0x42
> cpu MHz : 900.207
> cache size : 6144 KB
> physical id : 0
> siblings: 4
> core id : 0
> cpu cores : 4
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 22
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
> syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts
> rep_good nopl xtopology nonstop_tsc aperfmperf tsc_known_freq pni
> pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16
> xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
> aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch intel_pt
> tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle
> avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt
> xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify
> hwp_act_window hwp_epp
> bugs:
> bogomips: 7008.00
> clflush size: 64
> cache_alignment : 64
> address sizes : 39 bits physical, 48 bits virtual
> power management:
>
>
>
> $ lshw
>
> (...)
> *-cpu
> description: CPU
> product: Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
> vendor: Intel Corp.
> physical id: 52
> bus info: cpu@0
> version: Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
> serial: To Be Filled By O.E.M.
> slot: LGA1151
> size: 3792MHz
> capacity: 4005MHz
> width: 64 bits
> clock: 100MHz
> capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr
> pae mce cx8 apic sep mtrr pge mca cm
> ov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall
> nx pdpe1gb rdtscp constant_tsc art arc
> h_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf
> tsc_known_freq pni pclmulqdq dtes64 monit
> or ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1
> sse4_2 x2apic movbe popcnt tsc_deadline
> _timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch intel_pt
> tpr_shadow vnmi flexpriority ept vpid f
> sgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed
> adx smap clflushopt xsaveopt xsavec
> xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window
> hwp_epp cpufreq
> configuration: cores=4 enabledcores=4 threads=4
>
>
> (...)
>
> Was I ripped off?
>
> Can someone with the same cpu check the output of the above commands?
>
> Thanks...
>
>
> Jorge Almeida
>
While I don't have anything that new handy, the 6MB cache checks out
against intel's specs for the i5-7600. The broadwell i5-5675 lists off at a
4MB cache (not including the eDRAM). GCC seems to like going with a
slightly more tried & true feature set when faced with a fancy, new, chip,
in my experience. Especially if the version of GCC in use isn't the
absolute bleeding edge latest and greatest.
--
Poison [BLX]
Joshua M. Murphy
[gentoo-user] broadwell for kaby lake?
I have a new computer, assembled piece by piece, and the cpu is
supposed to be an intel i5-7600 LGA1151. The original box says "7th
generation".
However:
$ gcc -### -E - -march=native 2>&1 | sed -r '/cc1/!d;s/(")|(^.* - )//g'
-march=broadwell -mmmx -mno-3dnow -msse -msse2 -msse3 -mssse3
-mno-sse4a -mcx16 -msahf -mmovbe -maes -mno-sha -mpclmul -mpopcnt
-mabm -mno-lwp -mfma -mno-fma4 -mno-xop -mbmi -mbmi2 -mno-tbm -mavx
-mavx2 -msse4.2 -msse4.1 -mlzcnt -mrtm -mhle -mrdrnd -mf16c -mfsgsbase
-mrdseed -mprfchw -madx -mfxsr -mxsave -mxsaveopt -mno-avx512f
-mno-avx512er -mno-avx512cd -mno-avx512pf -mno-prefetchwt1 --param
l1-cache-size=32 --param l1-cache-line-size=64 --param
l2-cache-size=6144 -mtune=generic -fstack-protector-strong
?!
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 158
model name : Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
stepping: 9
microcode : 0x42
cpu MHz : 900.207
cache size : 6144 KB
physical id : 0
siblings: 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts
rep_good nopl xtopology nonstop_tsc aperfmperf tsc_known_freq pni
pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16
xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch intel_pt
tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle
avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt
xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify
hwp_act_window hwp_epp
bugs:
bogomips: 7008.00
clflush size: 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
$ lshw
(...)
*-cpu
description: CPU
product: Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
vendor: Intel Corp.
physical id: 52
bus info: cpu@0
version: Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
serial: To Be Filled By O.E.M.
slot: LGA1151
size: 3792MHz
capacity: 4005MHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr
pae mce cx8 apic sep mtrr pge mca cm
ov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall
nx pdpe1gb rdtscp constant_tsc art arc
h_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf
tsc_known_freq pni pclmulqdq dtes64 monit
or ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1
sse4_2 x2apic movbe popcnt tsc_deadline
_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch intel_pt
tpr_shadow vnmi flexpriority ept vpid f
sgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed
adx smap clflushopt xsaveopt xsavec
xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window
hwp_epp cpufreq
configuration: cores=4 enabledcores=4 threads=4
(...)
Was I ripped off?
Can someone with the same cpu check the output of the above commands?
Thanks...
Jorge Almeida
