On Thu, 13 Oct 2011 15:10:48 +0200, Eelco Dolstra <e.dols...@tudelft.nl> wrote:
> Hi,
>
> On 10/13/2011 03:04 PM, Florian Friesdorf wrote:
>
> > Author: chaoflow
>
> > + # Please keep in sync with linux_3_0_powertop, except for extraConfig
> > linux_3_0 = makeOverridable (import
> > ../os-specific/linux/kernel/linux-3.0.nix) {
> ...
> > + # Please keep in sync with linux_3_0, except for extraConfig
> > + linux_3_0_powertop = makeOverridable (import
> > ../os-specific/linux/kernel/linux-3.0.nix) {
> > + inherit fetchurl stdenv perl mktemp module_init_tools ubootChooser;
> > + extraConfig = ''
> > + CPU_FREQ_GOV_ONDEMAND y
>
> Assuming that there is no significant runtime cost, why not just put this in
> the
> default kernel? It's not a good idea to have a separate kernel for every
> little
> feature. We have too many kernels already (creating a potential maintenance
> problem).
>
> BTW, as far as I can tell from my 2.6.35 kernel, some of these options are
> already enabled (e.g., HIGH_RES_TIMERS, HPET_TIMER, NO_HZ).
>
> CPU_FREQ_GOV_ONDEMAND should be "m" instead of "y".I fixed the colliding (y vs m) options and disabled unnecessary debug options. Attached is the effective (full) config diff between default 3_0 and 3_0_powertop. Here the summary: # Wanted by powertop: +CONFIG_PM_RUNTIME=y +CONFIG_PM_ADVANCED_DEBUG=y +CONFIG_USB_SUSPEND=y +CONFIG_DEBUG_KERNEL=y +CONFIG_TIMER_STATS=y # Does not show up in menuconfig, assumed to be implicitly enabled +CONFIG_PCIE_PME=y # Recommend in case DEBUG is enabled +CONFIG_DEBUG_RODATA=y +CONFIG_DEBUG_BOOT_PARAMS=y I'm now using 3_0_powertop on a daily base on my laptop.
--- 3_0/config 1970-01-01 01:00:01.000000000 +0100 +++ 3_0_powertop/config 1970-01-01 01:00:01.000000000 +0100 @@ -158,6 +158,7 @@ CONFIG_UID16=y CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -179,6 +180,7 @@ # CONFIG_PERF_EVENTS=y # CONFIG_PERF_COUNTERS is not set +# CONFIG_DEBUG_PERF_USE_VMALLOC is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y @@ -297,6 +299,7 @@ CONFIG_PARAVIRT=y # CONFIG_PARAVIRT_SPINLOCKS is not set CONFIG_PARAVIRT_CLOCK=y +# CONFIG_PARAVIRT_DEBUG is not set CONFIG_NO_BOOTMEM=y CONFIG_MEMTEST=y # CONFIG_MK8 is not set @@ -329,6 +332,7 @@ CONFIG_SWIOTLB=y CONFIG_IOMMU_HELPER=y CONFIG_IOMMU_API=y +# CONFIG_MAXSMP is not set CONFIG_NR_CPUS=64 CONFIG_SCHED_SMT=y CONFIG_SCHED_MC=y @@ -425,10 +429,10 @@ CONFIG_PM_STD_PARTITION="" CONFIG_PM_SLEEP=y CONFIG_PM_SLEEP_SMP=y -# CONFIG_PM_RUNTIME is not set +CONFIG_PM_RUNTIME=y CONFIG_PM=y CONFIG_PM_DEBUG=y -# CONFIG_PM_ADVANCED_DEBUG is not set +CONFIG_PM_ADVANCED_DEBUG=y # CONFIG_PM_TEST_SUSPEND is not set CONFIG_CAN_PM_TRACE=y # CONFIG_PM_TRACE_RTC is not set @@ -521,8 +525,10 @@ CONFIG_PCIEAER_INJECT=m CONFIG_PCIEASPM=y # CONFIG_PCIEASPM_DEBUG is not set +CONFIG_PCIE_PME=y CONFIG_ARCH_SUPPORTS_MSI=y CONFIG_PCI_MSI=y +# CONFIG_PCI_DEBUG is not set CONFIG_PCI_STUB=m CONFIG_XEN_PCIDEV_FRONTEND=m CONFIG_HT_IRQ=y @@ -913,6 +919,11 @@ # # CONFIG_IP_DCCP_CCID2_DEBUG is not set # CONFIG_IP_DCCP_CCID3 is not set + +# +# DCCP Kernel Hacking +# +# CONFIG_IP_DCCP_DEBUG is not set CONFIG_IP_SCTP=m # CONFIG_SCTP_DBG_MSG is not set # CONFIG_SCTP_DBG_OBJCNT is not set @@ -1237,6 +1248,8 @@ CONFIG_FW_LOADER=y CONFIG_FIRMWARE_IN_KERNEL=y CONFIG_EXTRA_FIRMWARE="" +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set CONFIG_SYS_HYPERVISOR=y CONFIG_CONNECTOR=m CONFIG_MTD=m @@ -2749,6 +2762,7 @@ # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set CONFIG_SPI=y +# CONFIG_SPI_DEBUG is not set CONFIG_SPI_MASTER=y # @@ -2800,6 +2814,7 @@ # CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y CONFIG_GPIOLIB=y +# CONFIG_DEBUG_GPIO is not set # CONFIG_GPIO_SYSFS is not set CONFIG_GPIO_MAX730X=m @@ -4178,6 +4193,8 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set +CONFIG_USB_SUSPEND=y +# CONFIG_USB_OTG is not set CONFIG_USB_MON=m CONFIG_USB_WUSB=m CONFIG_USB_WUSB_CBAF=m @@ -4350,6 +4367,7 @@ CONFIG_USB_UEAGLEATM=m CONFIG_USB_XUSBATM=m CONFIG_USB_GADGET=m +# CONFIG_USB_GADGET_DEBUG is not set # CONFIG_USB_GADGET_DEBUG_FILES is not set # CONFIG_USB_GADGET_DEBUG_FS is not set CONFIG_USB_GADGET_VBUS_DRAW=2 @@ -5023,18 +5041,56 @@ CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_SECTION_MISMATCH is not set -# CONFIG_DEBUG_KERNEL is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +# CONFIG_LOCKUP_DETECTOR is not set # CONFIG_HARDLOCKUP_DETECTOR is not set +# CONFIG_DETECT_HUNG_TASK is not set +# CONFIG_SCHED_DEBUG is not set +# CONFIG_SCHEDSTATS is not set +CONFIG_TIMER_STATS=y +# CONFIG_DEBUG_OBJECTS is not set # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set +# CONFIG_DEBUG_KMEMLEAK is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set # CONFIG_SPARSE_RCU_POINTER is not set +# CONFIG_LOCK_STAT is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_VIRTUAL is not set +# CONFIG_DEBUG_WRITECOUNT is not set CONFIG_DEBUG_MEMORY_INIT=y +# CONFIG_DEBUG_LIST is not set +# CONFIG_TEST_LIST_SORT is not set +# CONFIG_DEBUG_SG is not set +# CONFIG_DEBUG_NOTIFIERS is not set +# CONFIG_DEBUG_CREDENTIALS is not set CONFIG_ARCH_WANT_FRAME_POINTERS=y CONFIG_FRAME_POINTER=y +# CONFIG_BOOT_PRINTK_DELAY is not set +# CONFIG_RCU_TORTURE_TEST is not set CONFIG_RCU_CPU_STALL_TIMEOUT=60 +# CONFIG_BACKTRACE_SELF_TEST is not set +# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set +# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set +# CONFIG_DEBUG_PER_CPU_MAPS is not set CONFIG_LKDTM=m +# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_LATENCYTOP is not set CONFIG_SYSCTL_SYSCALL_CHECK=y +# CONFIG_DEBUG_PAGEALLOC is not set CONFIG_USER_STACKTRACE_SUPPORT=y CONFIG_HAVE_FUNCTION_TRACER=y CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y @@ -5056,13 +5112,21 @@ CONFIG_ASYNC_RAID6_TEST=m # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_KGDB is not set CONFIG_HAVE_ARCH_KMEMCHECK=y +# CONFIG_KMEMCHECK is not set CONFIG_TEST_KSTRTOX=m CONFIG_STRICT_DEVMEM=y CONFIG_X86_VERBOSE_BOOTUP=y CONFIG_EARLY_PRINTK=y CONFIG_EARLY_PRINTK_DBGP=y +# CONFIG_DEBUG_STACKOVERFLOW is not set +# CONFIG_X86_PTDUMP is not set +CONFIG_DEBUG_RODATA=y +# CONFIG_DEBUG_RODATA_TEST is not set # CONFIG_DEBUG_SET_MODULE_RONX is not set +# CONFIG_DEBUG_NX_TEST is not set +# CONFIG_IOMMU_DEBUG is not set # CONFIG_IOMMU_STRESS is not set CONFIG_HAVE_MMIOTRACE_SUPPORT=y CONFIG_IO_DELAY_TYPE_0X80=0 @@ -5074,7 +5138,10 @@ # CONFIG_IO_DELAY_UDELAY is not set # CONFIG_IO_DELAY_NONE is not set CONFIG_DEFAULT_IO_DELAY_TYPE=0 +CONFIG_DEBUG_BOOT_PARAMS=y +# CONFIG_CPA_DEBUG is not set CONFIG_OPTIMIZE_INLINING=y +# CONFIG_DEBUG_STRICT_USER_COPY_CHECKS is not set # # Security options
-- Florian Friesdorf <f...@chaoflow.net> GPG FPR: 7A13 5EEE 1421 9FC2 108D BAAF 38F8 99A3 0C45 F083 Jabber/XMPP: f...@chaoflow.net IRC: chaoflow on freenode,ircnet,blafasel,OFTC
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