On Fri, Apr 07, 2017 at 11:07:15PM +0200, Paul Menzel wrote: > Dear Linux folks, > > > Measuring where time is spent during boot with `systemd-bootchart` > on an Asus A780FullHD, it turns out that half a second is spent in > `pci_apply_final_quirks()`. I agree, that seems like a crazy amount of time. Can you figure out how to turn on pr_debug() (via the dynamic debug mess or whatever) and boot with "initcall_debug"? That should tell us how long each quirk took. > Here are the times copied from the SVG: > > init_ladder 0.012s > init_menu 0.012s > pm_sysrq_init 0.012s > acpi_init 0.027s > pci_subsys_init 0.008s > hpet_late_init 0.004s > tracer_init_tracefs 0.002s > event_trace_init 0.008s > pnpacpi_init 0.002s > chr_dev_init 0.003s > init_acpi_pm_clocksource 0.004s > pci_apply_final_quirks 0.452s > populate_rootfs 0.400s > pci_iommu_init 0.003s > rsa_init 0.058s > serial8250_init 0.020s > i8042_init 0.003s > load_system_certificate_list 0.002s > ata_init 0.007s > ehci_pci_init 0.030s > ohci_pci_init 0.312s > ahci_pci_driver_init 0.342s > atiixp_pci_driver_init 0.337s > hid_init 0.004s > init_sr 0.031s > > I don’t know what information you need, so I just include the Linux > Kernel version, and the output of `lspci -nn`. > > ``` > $ more /proc/version > Linux version 4.9.0-0.bpo.2-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) > (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Debian 4.9.13-1~bpo8+1 > (201 > 7-02-27) > $ lspci -nn > 00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] RS780 > Host Bridge [1022:9600] > 00:01.0 PCI bridge [0604]: ASRock Incorporation Device [1849:9602] > 00:09.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] > RS780/RS880 PCI to PCI bridge (PCIE port 4) [1022:9608] > 00:0a.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] > RS780/RS880 PCI to PCI bridge (PCIE port 5) [1022:9609] > 00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391] > 00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] > 00:12.1 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0 USB OHCI1 Controller [1002:4398] > 00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] > 00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] > 00:13.1 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0 USB OHCI1 Controller [1002:4398] > 00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] > 00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 > SMBus Controller [1002:4385] (rev 3a) > 00:14.1 IDE interface [0101]: Advanced Micro Devices, Inc. [AMD/ATI] > SB7x0/SB8x0/SB9x0 IDE Controller [1002:439c] > 00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] > SBx00 Azalia (Intel HDA) [1002:4383] > 00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD/ATI] > SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] > 00:14.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] > SBx00 PCI to PCI Bridge [1002:4384] > 00:14.5 USB controller [0c03]: Advanced Micro Devices, Inc. > [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399] > 00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 > [Athlon64/Opteron] HyperTransport Technology Configuration > [1022:1100] > 00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 > [Athlon64/Opteron] Address Map [1022:1101] > 00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 > [Athlon64/Opteron] DRAM Controller [1022:1102] > 00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 > [Athlon64/Opteron] Miscellaneous Control [1022:1103] > 01:05.0 VGA compatible controller [0300]: Advanced Micro Devices, > Inc. [AMD/ATI] RS780 [Radeon HD 3200] [1002:9610] > 04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller > [10ec:8168] (rev 02) > ``` > > It’d be great, if the times could be reduced, so that the time from > GRUB to entering the LUKS passphrase gets smaller. > > > Kind regards, > > Paul
