Re: [RFC][PATCH 2/2] ACPI: handle timer ticks proactively

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I ran bltk this patch vs 2.6.18.1 on a Dell i6400 Core Duo laptop.
Initial result (1 measurement of each kernel) is that
battery life is unchanged, but response time improves with the new patch.

Summary files attached.

thanks,
-Len
                             Workload
                        Workload : Open Office (office) 1.0.4

                              System
                    Manufacturer : Dell Inc.
                    Product Name : MM061
                  System Release : SUSE LINUX 10.1 (i586)
                  Kernel Release : 2.6.18.1-dirty

                                CPU
                             CPU : 0
                       CPU Model : Genuine Intel(R) CPU T2500 @ 2.00GHz
                      Cache Size : 2048 KB
                     Num Logical : 2
                        Governor : ondemand
                           Timer : 0.00
                      Interrupts : 8.93
                            Load : 1.58%
                    Max Frequecy : 2000000
                   Min Frequency : 1000000
               Average Frequency : 1017733
             Bus Master Activity : 0.00
                              C1 : 31.88
                              C2 : 32.65
                              C3 : 260.95
                              P0 : 1.69
                              P1 : 0.09
                              P2 : 0.05
                              P3 : 98.16

                                CPU
                             CPU : 1
                       CPU Model : Genuine Intel(R) CPU T2500 @ 2.00GHz
                      Cache Size : 2048 KB
                     Num Logical : 2
                        Governor : ondemand
                           Timer : 249.98
                      Interrupts : 2.82
                            Load : 1.92%
                    Max Frequecy : 2000000
                   Min Frequency : 1000000
               Average Frequency : 1017733
             Bus Master Activity : 0.00
                              C1 : 4.19
                              C2 : 5.03
                              C3 : 287.82
                              P0 : 1.69
                              P1 : 0.09
                              P2 : 0.05
                              P3 : 98.16

                              Memory
                     Memory Size : 2064260 kB
                       Swap Size : 2104472 kB
                      Max Memory : 664196 kB
                        Max Swap : 0 kB

                              Display
                    Grafic Model : Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
                    Display Size : 1280x800x16
                   Display State : on 100.00%, standby 0.00%, suspend 0.00%, off 0.00%

                                HD
                        HD Model : HTS721010G9SA00
                         HD Size : 100030 MBytes (100 GB)
                          HD RPM : -
                        HD Reads : 0.00 per sec
                       HD Writes : 2.77 per sec
                        HD State : active/idle 0.00%, standby 100.00%, sleeping 0.00%

                                BAT
                   Battery Model : DELLUD2646
                  Charging State : charged
                  Design Voltage : 11100 mV
                 Design Capacity : 53280 mWh (100.00%)
              Last Full Capacity : 48384 mWh (90.81%)
              Remaining Capacity : 53280 mWh (100.00%)
                  Start Capacity : 53280 mWh (100.00%)
                 Finish Capacity : 11 mWh (0.02%)
                      Drain Rate : 16.31 W (4.53 mWh per sec)
           Design Battery Rating : 196 min (03:16:02)

                              Rating
                  Battery Rating : 196 min (03:16:00)
                      Iterations : 16.33
                      Cycle Time : 720.00 sec
                       Work Time : 481.48 sec
                   Response Time : 8.28 sec
                           Score : 289.92

                              Source
                          Source : results.office.amb2a

                              Comment
                         Comment : -

                            Test Result
                          Result : Passed

                             Workload
                        Workload : Open Office (office) 1.0.4

                              System
                    Manufacturer : Dell Inc.
                    Product Name : MM061
                  System Release : SUSE LINUX 10.1 (i586)
                  Kernel Release : 2.6.18.1

                                CPU
                             CPU : 0
                       CPU Model : Genuine Intel(R) CPU T2500 @ 2.00GHz
                      Cache Size : 2048 KB
                     Num Logical : 2
                        Governor : ondemand
                           Timer : 0.00
                      Interrupts : 11.84
                            Load : 2.18%
                    Max Frequecy : 2000000
                   Min Frequency : 1000000
               Average Frequency : 1016988
             Bus Master Activity : 0.00
                              C1 : 0.00
                              C2 : 10.39
                              C3 : 565.52
                              P0 : 1.63
                              P1 : 0.09
                              P2 : 0.03
                              P3 : 98.25

                                CPU
                             CPU : 1
                       CPU Model : Genuine Intel(R) CPU T2500 @ 2.00GHz
                      Cache Size : 2048 KB
                     Num Logical : 2
                        Governor : ondemand
                           Timer : 249.98
                      Interrupts : 0.00
                            Load : 1.43%
                    Max Frequecy : 2000000
                   Min Frequency : 1000000
               Average Frequency : 1016988
             Bus Master Activity : 0.00
                              C1 : 0.00
                              C2 : 11.11
                              C3 : 323.20
                              P0 : 1.63
                              P1 : 0.09
                              P2 : 0.03
                              P3 : 98.25

                              Memory
                     Memory Size : 2064260 kB
                       Swap Size : 2104472 kB
                      Max Memory : 658288 kB
                        Max Swap : 0 kB

                              Display
                    Grafic Model : Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
                    Display Size : 1280x800x16
                   Display State : on 100.00%, standby 0.00%, suspend 0.00%, off 0.00%

                                HD
                        HD Model : HTS721010G9SA00
                         HD Size : 100030 MBytes (100 GB)
                          HD RPM : -
                        HD Reads : 0.07 per sec
                       HD Writes : 2.76 per sec
                        HD State : active/idle 0.00%, standby 100.00%, sleeping 0.00%

                                BAT
                   Battery Model : DELLUD2646
                  Charging State : charged
                  Design Voltage : 11100 mV
                 Design Capacity : 53280 mWh (100.00%)
              Last Full Capacity : 48362 mWh (90.77%)
              Remaining Capacity : 53280 mWh (100.00%)
                  Start Capacity : 53280 mWh (100.00%)
                 Finish Capacity : 55 mWh (0.10%)
                      Drain Rate : 16.29 W (4.53 mWh per sec)
           Design Battery Rating : 196 min (03:16:12)

                              Rating
                  Battery Rating : 196 min (03:16:00)
                      Iterations : 16.33
                      Cycle Time : 720.00 sec
                       Work Time : 482.11 sec
                   Response Time : 8.87 sec
                           Score : 270.59

                              Source
                          Source : results.office.ref

                              Comment
                         Comment : -

                            Test Result
                          Result : Passed


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