On Wed, 12 Aug 2020 at 02:54, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > > On Wed, 12 Aug 2020 00:35:24 +0200 > Ahmed Zaki <anzaki@xxxxxxxxx> wrote: > > > Hello, > > > > I am trying to use function_profile_enabled on a MIPS machine but only > > the HITS column is showing numbers. Time and Avg are showing all > > Zeros. > > What clock are you using? > > cat /sys/kernel/debug/tracing/trace_clock > > And also supply the dmesg output, so I can see if there's an issue with > the clock being used. > > -- Steve > > > > > > This is my .config file: > > > > CONFIG_FTRACE=y > > CONFIG_FUNCTION_TRACER=y > > CONFIG_FUNCTION_GRAPH_TRACER=y > > CONFIG_IRQSOFF_TRACER=y > > CONFIG_SCHED_TRACER=y > > CONFIG_DYNAMIC_FTRACE=y > > > > Am I missing something? > > > > Thanks. > # cat /sys/kernel/debug/tracing/trace_clock [local] global counter uptime perf mono mono_raw boot I tried all of them and still getting zeros in TIme and Avg And below is dmesg, thanks. [ 0.000000] Linux version 4.14.171 (ahmed@ahmed-VirtualBox) (gcc version 5.4.0 (Buildroot 2017.02.4-g3e5f6d5bc-dirty)) #1 Tue Aug 11 13:52:20 MDT 2020 [ 0.000000] bootconsole [early0] enabled [ 0.000000] CPU0 revision is: 00019750 (MIPS 74Kc) [ 0.000000] MIPS: machine is UBNT-UAP-AC-M [ 0.000000] SoC: Qualcomm Atheros QCA956X ver 1 rev 0 [ 0.000000] Determined physical RAM map: [ 0.000000] memory: 08000000 @ 00000000 (usable) [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes. [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] On node 0 totalpages: 32768 [ 0.000000] free_area_init_node: node 0, pgdat 80640220, node_mem_map 81007540 [ 0.000000] Normal zone: 256 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 32768 pages, LIFO batch:7 [ 0.000000] random: get_random_bytes called from start_kernel+0xa0/0x47c with crng_init=0 [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32512 [ 0.000000] Kernel command line: console=ttyS0,115200n8 rootfstype=jffs2 [ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes) [ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) [ 0.000000] Writing ErrCtl register=00000000 [ 0.000000] Readback ErrCtl register=00000000 [ 0.000000] Memory: 121536K/131072K available (4158K kernel code, 261K rwdata, 1616K rodata, 1380K init, 525K bss, 9536K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] ftrace: allocating 15925 entries in 32 pages [ 0.000000] NR_IRQS: 51 [ 0.000000] CPU clock: 775.000 MHz [ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 4932285024 ns [ 0.000007] sched_clock: 32 bits at 387MHz, resolution 2ns, wraps every 5541893118ns [ 0.008231] Calibrating delay loop... 385.02 BogoMIPS (lpj=192512) [ 0.025759] pid_max: default: 32768 minimum: 301 [ 0.030890] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.037891] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.049414] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.059741] futex hash table entries: 256 (order: 0, 7168 bytes) [ 0.066201] pinctrl core: initialized pinctrl subsystem [ 0.072820] NET: Registered protocol family 16 [ 0.084554] PCI host bridge /ahb/pcie-controller@18250000 ranges: [ 0.091038] MEM 0x0000000012000000..0x0000000013ffffff [ 0.096559] IO 0x0000000000000000..0x0000000000000000 [ 0.122978] PCI host bridge to bus 0000:00 [ 0.127348] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff] [ 0.134602] pci_bus 0000:00: root bus resource [io 0x0000] [ 0.140485] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0] [ 0.147649] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] [ 0.156043] pci 0000:00:00.0: [168c:003c] type 00 class 0x028000 [ 0.156102] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit] [ 0.156158] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref] [ 0.156240] pci 0000:00:00.0: supports D1 [ 0.156249] pci 0000:00:00.0: PME# supported from D0 D1 D3hot [ 0.156456] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00 [ 0.156482] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit] [ 0.164244] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref] [ 0.172461] clocksource: Switched to clocksource MIPS [ 0.217220] NET: Registered protocol family 2 [ 0.222606] TCP established hash table entries: 1024 (order: 0, 4096 bytes) [ 0.230012] TCP bind hash table entries: 1024 (order: 2, 20480 bytes) [ 0.236904] TCP: Hash tables configured (established 1024 bind 1024) [ 0.243771] UDP hash table entries: 256 (order: 1, 12288 bytes) [ 0.250128] UDP-Lite hash table entries: 256 (order: 1, 12288 bytes) [ 0.257157] NET: Registered protocol family 1 [ 0.261846] PCI: CLS 0 bytes, default 32 [ 0.268183] workingset: timestamp_bits=30 max_order=15 bucket_order=0 [ 0.279278] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc. [ 0.299629] io scheduler noop registered [ 0.303803] io scheduler deadline registered (default) [ 0.310903] pinctrl-single 1804002c.pinmux: 544 pins at pa b804002c size 68 [ 0.319276] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled [ 0.326750] console [ttyS0] disabled [ 0.330606] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 1562500) is a 16550A [ 0.339719] console [ttyS0] enabled [ 0.347287] bootconsole [early0] disabled [ 0.362510] m25p80 spi0.0: mx25l12805d (16384 Kbytes) [ 0.367804] 5 fixed-partitions partitions found on MTD device spi0.0 [ 0.374384] Creating 5 MTD partitions on "spi0.0": [ 0.379357] 0x000000000000-0x000000060000 : "u-boot" [ 0.385291] 0x000000060000-0x000000070000 : "u-boot-env" [ 0.391662] 0x000000070000-0x000000f70000 : "firmware" [ 0.401096] 2 uimage-fw partitions found on MTD device firmware [ 0.407258] Creating 2 MTD partitions on "firmware": [ 0.412409] 0x000000000000-0x000000200000 : "kernel" [ 0.418280] 0x000000200000-0x000000f00000 : "rootfs" [ 0.424167] mtd: device 4 (rootfs) set to be root filesystem [ 0.430107] 0x000000f70000-0x000000ff0000 : "cfg" [ 0.435786] 0x000000ff0000-0x000001000000 : "art" [ 0.442294] libphy: Fixed MDIO Bus: probed [ 0.530457] random: fast init done [ 1.071833] libphy: ag71xx_mdio: probed [ 1.131902] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:04 [uid=004dd074, driver=Atheros 8031 ethernet] [ 1.142955] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: sgmii [ 1.150433] Netfilter messages via NETLINK v0.30. [ 1.155670] nf_conntrack version 0.5.0 (2048 buckets, 8192 max) [ 1.162775] NET: Registered protocol family 10 [ 1.171904] Segment Routing with IPv6 [ 1.175834] NET: Registered protocol family 17 [ 1.180555] Bridge firewalling registered [ 1.184733] 8021q: 802.1Q VLAN Support v1.8 [ 4.259284] jffs2: notice: (1) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found. [ 4.275688] VFS: Mounted root (jffs2 filesystem) readonly on device 31:4. [ 4.301258] Freeing unused kernel memory: 1380K [ 4.305970] This architecture does not have kernel memory protection. [ 5.310549] jffs2: notice: (308) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found. [ 6.330613] random: dd: uninitialized urandom read (512 bytes read) [ 6.525170] random: avahi-daemon: uninitialized urandom read (4 bytes read) [ 6.547278] random: avahi-daemon: uninitialized urandom read (4 bytes read) [ 13.699503] random: crng init done [ 14.526615] Loading modules backported from Linux version v4.19.98-0-gd183c8e2647a [ 14.534488] Backport generated by backports.git v4.19.98-1-0-g8204eb99 [ 18.071321] PCI: Enabling device 0000:00:00.0 (0000 -> 0002) [ 18.077401] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0 [ 18.253583] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2 [ 18.264673] ath10k_pci 0000:00:00.0: Falling back to user helper [ 18.282503] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-6.bin failed with error -2 [ 18.293580] ath10k_pci 0000:00:00.0: Falling back to user helper [ 18.564289] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043222ff sub 0000:0000 [ 18.573883] ath10k_pci 0000:00:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 0 testmode 0 [ 18.587016] ath10k_pci 0000:00:00.0: firmware ver 10.2.4.70.70 api 5 features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 3a226daa [ 18.663342] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/board-2.bin failed with error -2 [ 18.674165] ath10k_pci 0000:00:00.0: Falling back to user helper [ 18.692404] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08 [ 19.742442] ath10k_pci 0000:00:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1 [ 19.833153] ath: EEPROM regdomain: 0x0 [ 19.833164] ath: EEPROM indicates default country code should be used [ 19.833168] ath: doing EEPROM country->regdmn map search [ 19.833181] ath: country maps to regdmn code: 0x3a [ 19.833186] ath: Country alpha2 being used: US [ 19.833190] ath: Regpair used: 0x3a [ 20.758095] ath: EEPROM regdomain: 0x0 [ 20.758106] ath: EEPROM indicates default country code should be used [ 20.758110] ath: doing EEPROM country->regdmn map search [ 20.758125] ath: country maps to regdmn code: 0x3a [ 20.758130] ath: Country alpha2 being used: US [ 20.758134] ath: Regpair used: 0x3a
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