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Date:	Fri, 30 May 2014 13:07:19 -0700
From:	Tim Chen <tim.c.chen@...ux.intel.com>
To:	Dirk Brandewie <dirk.brandewie@...il.com>
Cc:	Dave Jones <davej@...hat.com>, George Spelvin <linux@...izon.com>,
	herbert@...dor.apana.org.au, james.guilford@...el.com,
	JBeulich@...e.com, linux-kernel@...r.kernel.org,
	Jacob jun Pan <jacob.jun.pan@...el.com>
Subject: Re: [RFC PATCH] crypto: crc32c-pclmul - Use pmovzxdq to shrink
 K_table

On Fri, 2014-05-30 at 12:38 -0700, Dirk Brandewie wrote:

> > Dirk,
> >
> > Thanks for checking things out.
> >
> > I tested on a Haswell system, and I see that the frequency
> > can dip below the max even when I set the min_perf_pct to 100.
> > Let me know if you want to log on to my system and check if
> > there's something I missed. It is odd that the package 1's
> > cores are at a much higher frequency and close to
> > max than package 0, once min_perf_pct is set to 100.
> >
> 
> Can you run turbostat for a few samples it reports an average over the sample
> time.
> 

Here it is.

Tim

Package     Core     CPU Avg_MHz   %Busy Bzy_MHz TSC_MHz     SMI  CPU%c1  CPU%c3  CPU%c6  CPU%c7 CoreTmp  PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt RAMWatt   PKG_%   RAM_% 
       -       -       -       0    0.02    2048    2594       0    0.23    0.00   99.75    0.00      33      42    5.93    0.00   91.52    0.00   23.22    4.15    0.12    0.00
       0       0       0       1    0.06    1997    2594       0    0.16    0.00   99.78    0.00      32      42    7.92    0.00   91.55    0.00   16.88    1.95    0.06    0.00
       0       0      28       0    0.01    1338    2594       0    0.21
       0       1       1       0    0.02    1696    2594       0    0.11    0.00   99.87    0.00      33
       0       1      29       0    0.01    1455    2594       0    0.11
       0       2       2       0    0.01    1618    2594       0    0.07    0.00   99.91    0.00      30
       0       2      30       0    0.01    1513    2594       0    0.07
       0       3       3       0    0.01    1724    2594       0    0.08    0.00   99.91    0.00      31
       0       3      31       0    0.01    1447    2594       0    0.08
       0       4       4       0    0.01    1769    2594       0    0.06    0.00   99.92    0.00      32
       0       4      32       0    0.01    1483    2594       0    0.06
       0       5       5       0    0.01    1670    2594       0    0.07    0.00   99.92    0.00      29
       0       5      33       0    0.01    1515    2594       0    0.07
       0       6       6       0    0.01    1600    2594       0    0.07    0.00   99.92    0.00      33
       0       6      34       0    0.01    1412    2594       0    0.07
       0       8       7       0    0.01    1588    2594       0    0.07    0.00   99.92    0.00      30
       0       8      35       0    0.01    1432    2594       0    0.07
       0       9       8       0    0.01    1662    2594       0    0.11    0.00   99.88    0.00      32
       0       9      36       0    0.02    1658    2594       0    0.10
       0      10       9       0    0.01    1570    2594       0    0.07    0.00   99.91    0.00      32
       0      10      37       0    0.01    1468    2594       0    0.07
       0      11      10       0    0.01    1680    2594       0    0.07    0.00   99.92    0.00      31
       0      11      38       0    0.01    1511    2594       0    0.07
       0      12      11       0    0.01    1690    2594       0    0.08    0.00   99.91    0.00      30
       0      12      39       0    0.01    1560    2594       0    0.08
       0      13      12       0    0.02    1604    2594       0    0.11    0.00   99.87    0.00      29
       0      13      40       0    0.02    1436    2594       0    0.11
       0      14      13       0    0.02    1620    2594       0    0.09    0.00   99.89    0.00      29
       0      14      41       0    0.02    1440    2594       0    0.09
       1       0      14       0    0.03    1666    2594       0    0.16    0.00   99.82    0.00      28      36    3.94    0.00   91.50    0.00    6.34    2.20    0.06    0.00
       1       0      42       3    0.08    3263    2594       0    0.11
       1       1      15       0    0.01    2194    2594       0    0.09    0.00   99.90    0.00      30
       1       1      43       0    0.01    2358    2594       0    0.09
       1       2      16       0    0.01    2650    2594       0    0.08    0.00   99.91    0.00      28
       1       2      44       0    0.01    2032    2594       0    0.08
       1       3      17       1    0.03    2305    2594       0    4.11    0.00   95.86    0.00      30
       1       3      45       0    0.01    2290    2594       0    4.13
       1       4      18       0    0.01    2362    2594       0    0.09    0.00   99.90    0.00      28
       1       4      46       0    0.01    2325    2594       0    0.09
       1       5      19       0    0.01    2374    2594       0    0.07    0.00   99.92    0.00      30
       1       5      47       0    0.01    2442    2594       0    0.07
       1       6      20       0    0.01    2476    2594       0    0.08    0.00   99.91    0.00      30
       1       6      48       0    0.01    2382    2594       0    0.07
       1       8      21       0    0.01    2669    2594       0    0.09    0.00   99.90    0.00      29
       1       8      49       0    0.02    1953    2594       0    0.09
       1       9      22       0    0.01    2537    2594       0    0.10    0.00   99.89    0.00      31
       1       9      50       0    0.01    2117    2594       0    0.10
       1      10      23       0    0.01    2531    2594       0    0.07    0.00   99.92    0.00      27
       1      10      51       0    0.01    2404    2594       0    0.08
       1      11      24       0    0.01    2315    2594       0    0.08    0.00   99.91    0.00      28
       1      11      52       0    0.01    2210    2594       0    0.08
       1      12      25       0    0.01    2434    2594       0    0.07    0.00   99.91    0.00      28
       1      12      53       0    0.01    2113    2594       0    0.08
       1      13      26       0    0.01    2070    2594       0    0.07    0.00   99.91    0.00      27
       1      13      54       0    0.01    2114    2594       0    0.08
       1      14      27       0    0.01    2324    2594       0    0.10    0.00   99.89    0.00      27
       1      14      55       1    0.03    2991    2594       0    0.08
Package     Core     CPU Avg_MHz   %Busy Bzy_MHz TSC_MHz     SMI  CPU%c1  CPU%c3  CPU%c6  CPU%c7 CoreTmp  PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt RAMWatt   PKG_%   RAM_% 
       -       -       -       0    0.01    2138    2594       0    0.10    0.01   99.88    0.00      33      42    4.32    0.09   94.88    0.00   22.45    3.56    0.12    0.00
       0       0       0       1    0.07    2106    2594       0    0.25    0.00   99.68    0.00      31      42    4.20    0.00   95.00    0.00   16.72    1.73    0.06    0.00
       0       0      28       0    0.01    2163    2594       0    0.31
       0       1       1       0    0.02    2005    2594       0    0.11    0.00   99.87    0.00      33
       0       1      29       0    0.01    1823    2594       0    0.12
       0       2       2       0    0.02    2008    2594       0    0.10    0.00   99.88    0.00      30
       0       2      30       0    0.01    1903    2594       0    0.10
       0       3       3       0    0.02    1953    2594       0    0.10    0.00   99.88    0.00      31
       0       3      31       0    0.01    1840    2594       0    0.11
       0       4       4       0    0.02    2220    2594       0    0.09    0.01   99.89    0.00      33
       0       4      32       0    0.01    1806    2594       0    0.09
       0       5       5       0    0.01    1723    2594       0    0.09    0.00   99.89    0.00      28
       0       5      33       0    0.01    1904    2594       0    0.09
       0       6       6       0    0.01    1806    2594       0    0.08    0.00   99.91    0.00      33
       0       6      34       0    0.01    1824    2594       0    0.08
       0       8       7       0    0.01    1910    2594       0    0.10    0.00   99.89    0.00      30
       0       8      35       0    0.01    1847    2594       0    0.10
       0       9       8       0    0.02    2204    2594       0    0.11    0.00   99.88    0.00      30
       0       9      36       0    0.02    1899    2594       0    0.11
       0      10       9       0    0.01    1967    2594       0    0.09    0.00   99.90    0.00      33
       0      10      37       0    0.01    1838    2594       0    0.09
       0      11      10       0    0.01    1696    2594       0    0.08    0.00   99.90    0.00      31
       0      11      38       0    0.01    1728    2594       0    0.08
       0      12      11       0    0.02    1863    2594       0    0.09    0.00   99.90    0.00      30
       0      12      39       0    0.01    1838    2594       0    0.09
       0      13      12       0    0.02    1856    2594       0    0.11    0.00   99.87    0.00      29
       0      13      40       0    0.01    1741    2594       0    0.12
       0      14      13       0    0.02    1887    2594       0    0.10    0.00   99.88    0.00      30
       0      14      41       0    0.01    1860    2594       0    0.11
       1       0      14       0    0.03    1875    2594       0    0.09    0.00   99.88    0.00      28      38    4.44    0.18   94.75    0.00    5.72    1.82    0.06    0.00
       1       0      42       0    0.01    2363    2594       0    0.11
       1       1      15       0    0.01    2368    2594       0    0.09    0.00   99.90    0.00      31
       1       1      43       0    0.01    2403    2594       0    0.09
       1       2      16       0    0.01    2501    2594       0    0.07    0.00   99.91    0.00      27
       1       2      44       0    0.01    2469    2594       0    0.07
       1       3      17       1    0.04    2674    2594       0    0.10    0.19   99.66    0.00      30
       1       3      45       0    0.01    2374    2594       0    0.13
       1       4      18       0    0.01    2446    2594       0    0.08    0.00   99.91    0.00      28
       1       4      46       0    0.01    2372    2594       0    0.08
       1       5      19       0    0.01    2479    2594       0    0.08    0.00   99.91    0.00      29
       1       5      47       0    0.01    2352    2594       0    0.08
       1       6      20       0    0.01    2436    2594       0    0.07    0.00   99.91    0.00      30
       1       6      48       0    0.01    2381    2594       0    0.08
       1       8      21       0    0.01    2377    2594       0    0.08    0.00   99.91    0.00      29
       1       8      49       0    0.01    2629    2594       0    0.08
       1       9      22       0    0.01    2407    2594       0    0.09    0.00   99.90    0.00      30
       1       9      50       0    0.01    2547    2594       0    0.09
       1      10      23       0    0.01    2254    2594       0    0.09    0.00   99.90    0.00      28
       1      10      51       0    0.01    2514    2594       0    0.09
       1      11      24       0    0.01    2204    2594       0    0.10    0.00   99.89    0.00      29
       1      11      52       0    0.01    2187    2594       0    0.09
       1      12      25       0    0.01    2310    2594       0    0.09    0.00   99.90    0.00      27
       1      12      53       0    0.01    2636    2594       0    0.09
       1      13      26       0    0.01    2325    2594       0    0.09    0.00   99.89    0.00      29
       1      13      54       0    0.02    1959    2594       0    0.09
       1      14      27       0    0.01    2273    2594       0    0.11    0.00   99.88    0.00      28
       1      14      55       1    0.02    2678    2594       0    0.10
Package     Core     CPU Avg_MHz   %Busy Bzy_MHz TSC_MHz     SMI  CPU%c1  CPU%c3  CPU%c6  CPU%c7 CoreTmp  PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt RAMWatt   PKG_%   RAM_% 
       -       -       -       0    0.02    2223    2594       0    0.12    0.00   99.86    0.00      34      41    4.47    0.00   94.54    0.00   22.70    3.64    0.14    0.00
       0       0       0       1    0.05    2251    2594       0    0.18    0.00   99.77    0.00      32      41    4.81    0.00   94.56    0.00   16.89    1.78    0.06    0.00
       0       0      28       0    0.01    1846    2594       0    0.22
       0       1       1       0    0.02    1758    2594       0    0.12    0.00   99.86    0.00      33
       0       1      29       0    0.02    1945    2594       0    0.12
       0       2       2       0    0.02    1635    2594       0    0.09    0.00   99.89    0.00      29
       0       2      30       0    0.01    1939    2594       0    0.10
       0       3       3       0    0.01    1834    2594       0    0.08    0.00   99.90    0.00      31
       0       3      31       0    0.01    1554    2594       0    0.09
       0       4       4       0    0.02    1827    2594       0    0.08    0.00   99.91    0.00      33
       0       4      32       0    0.01    1824    2594       0    0.08
       0       5       5       0    0.02    1925    2594       0    0.08    0.00   99.90    0.00      29
       0       5      33       0    0.01    1796    2594       0    0.08
       0       6       6       0    0.02    1801    2594       0    0.07    0.00   99.91    0.00      34
       0       6      34       0    0.01    1874    2594       0    0.08
       0       8       7       0    0.02    1930    2594       0    0.08    0.00   99.91    0.00      30
       0       8      35       0    0.01    1901    2594       0    0.08
       0       9       8       0    0.02    1874    2594       0    0.10    0.00   99.88    0.00      30
       0       9      36       0    0.02    1915    2594       0    0.10
       0      10       9       0    0.02    1779    2594       0    0.08    0.00   99.90    0.00      32
       0      10      37       0    0.01    1983    2594       0    0.09
       0      11      10       0    0.02    1754    2594       0    0.08    0.00   99.90    0.00      31
       0      11      38       0    0.01    1722    2594       0    0.09
       0      12      11       0    0.02    1730    2594       0    0.08    0.00   99.90    0.00      29
       0      12      39       0    0.01    1892    2594       0    0.09
       0      13      12       0    0.02    1943    2594       0    0.10    0.00   99.88    0.00      30
       0      13      40       0    0.02    2016    2594       0    0.10
       0      14      13       0    0.02    1893    2594       0    0.10    0.00   99.87    0.00      31
       0      14      41       0    0.01    1790    2594       0    0.11
       1       0      14       1    0.03    1998    2594       0    0.16    0.00   99.81    0.00      28      37    4.13    0.00   94.52    0.00    5.81    1.86    0.08    0.00
       1       0      42       3    0.08    3493    2594       0    0.11
       1       1      15       0    0.01    2483    2594       0    0.08    0.00   99.90    0.00      31
       1       1      43       0    0.01    2279    2594       0    0.09
       1       2      16       0    0.01    2454    2594       0    0.07    0.00   99.92    0.00      27
       1       2      44       0    0.01    2405    2594       0    0.07
       1       3      17       1    0.03    3069    2594       0    0.29    0.00   99.68    0.00      31
       1       3      45       0    0.01    2298    2594       0    0.31
       1       4      18       0    0.01    2515    2594       0    0.08    0.00   99.91    0.00      28
       1       4      46       0    0.01    2193    2594       0    0.08
       1       5      19       0    0.01    2547    2594       0    0.06    0.00   99.93    0.00      28
       1       5      47       0    0.01    2327    2594       0    0.06
       1       6      20       0    0.01    2315    2594       0    0.07    0.00   99.92    0.00      29
       1       6      48       0    0.01    2120    2594       0    0.07
       1       8      21       0    0.01    2482    2594       0    0.07    0.00   99.92    0.00      29
       1       8      49       0    0.01    2311    2594       0    0.07
       1       9      22       0    0.01    2372    2594       0    0.09    0.00   99.90    0.00      30
       1       9      50       0    0.01    2509    2594       0    0.09
       1      10      23       0    0.02    2147    2594       0    0.08    0.00   99.91    0.00      27
       1      10      51       0    0.01    2477    2594       0    0.08
       1      11      24       0    0.01    2138    2594       0    0.08    0.00   99.90    0.00      29
       1      11      52       0    0.01    2365    2594       0    0.09
       1      12      25       0    0.01    1965    2594       0    0.07    0.00   99.91    0.00      28
       1      12      53       0    0.01    2447    2594       0    0.08
       1      13      26       0    0.01    2476    2594       0    0.08    0.00   99.91    0.00      28
       1      13      54       0    0.01    2282    2594       0    0.08
       1      14      27       0    0.01    2386    2594       0    0.76    0.00   99.22    0.00      28
       1      14      55       1    0.02    3065    2594       0    0.75


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