Hi,
I am trying to profile Mali GPU counters on Odroid XU3 using Streamline. I have downloaded DS-5 Ultimate Edition trial for this purpose and built and run the gator daemon on the board ( using the steps from https://github.com/ARM-software/gator )
1. I am having some trouble with the GATOR_WITH_MALI_SUPPORT=MALI_MIDGARD flags, make does not seem to recognize this option. Without it I am able to compile and run.
2. I am able to see the Cortex A15/A7 stats but no GPU counters are visible on Streamline. Is this related to the previous step?
3. Does DS-5 Community Edition not support Streamline? I initially used that and it said there was no valid license.
4. Is there a way to read/log the GPU counter data on the board itself without using a host PC app like Streamline? If yes, could you please point me to documentation to enable this?
Thanks,
Manoj
Hi Manoj,
The readme contained in the gator git repository should contain sufficient instructions to build gator, but you can also get information within the Streamline documentation from here. Were all the flags (like DDK_DIR) that are mentioned in the instructions set?
With regards to the differences between the editions this will explain more: Features of Streamline Ultimate, Professional, and Community Editions.
Kind regards,Lukas
I thought I would provide some information about each one of your questions:
1) This option is needed to build Gator with counters enabled for Mali. The reason you can still build it without means that gator will be built without any Mali support at all.
For the flag to work you will need access to some parts of the Mali Driver source. Are you building gator seperate from the kernel for your board or are you building it as part of the kernel source?
The best option for getting Mali Counters is to just use the userspace gator daemon that comes prebuilt with Streamline. Place the gatord binary from DS-5/sw/streamline/bin/arm/gatord onto your target and then run it. You should then be able to connect to Streamline and get counters for the GPU.
2) Yes with you not including the GATOR_WITH_MALI_SUPPORT into your build gator will build with CPU support only.
3) Yes DS-5 Community edition should support Streamline. When did Streamline say there was no valid licence was it upon launching Streamline?
4) No unfortunately the only way to use GPU counter data is to use Streamline. This is because Streamline knows how to interact with the Mali driver to get the counters.
Hope this helps,Stephen
Hi Stephen,
Thank you for your response!
I was building gator driver as part of the kernel source. I guess to use the userspace version, I need to revert this change and run the gator as you suggested using the userspace daemon provided from Streamline. (I tried the Streamline gatord with the kernel having inbuilt driver, Mali counters were still not available)
On that note, is there something I need to update on Streamline to update available counters?
Streamline on DS-5 Community Edition said that there was no valid licence when I tried to connect to the board. I did not face this problem with the Ultimate Edition. Now, if I try it again, the licence issue does not exist. It instead tells me that 'Gator version "630" is newer than this program. >> Please upgrade Streamline to the latest version'
I currently have the latest DS-5 CE version available, v5.27. Is there a newer Streamline that I can download from somewhere?
Does the fact that I am using Linux change the on board data logging?
I was able to revert the kernel and use the userspace gator. It gave me the options to view Mali counters. Thanks!
I tried running a sample profile but the target (odroid XU3) crashed almost immediately as I started profiling. There were a whole bunch of CPUx reading wrong counter: -1 errors before there was a null pointer deference error. I do remember reading about this issue previously. Let me try to find it. I have attached some logs, in case you are interested.
[ 324.140990] [c0] .rt_nr_running : 0 [ 324.140994] [c6] CPU PMU: CPU6 reading wrong counter -1 [ 324.141002] [c0] .rt_throttled : 0 [ 324.141006] [c5] CPU PMU: CPU5 reading wrong counter -1 [ 324.141013] [c7] CPU PMU: CPU7 reading wrong counter -1 [ 324.141020] [c5] CPU PMU: CPU5 reading wrong counter -1 [ 324.141026] [c6] CPU PMU: CPU6 reading wrong counter -1 [ 324.141033] [c0] .rt_time : 0.000000 [ 324.141038] [c5] CPU PMU: CPU5 reading wrong counter -1 [ 324.141045] [c7] CPU PMU: CPU7 reading wrong counter -1 [ 324.141051] [c6] CPU PMU: CPU6 reading wrong counter -1 [ 324.141060] [c0] .rt_runtime : 0.000000 [ 324.141065] [c0] [ 324.141065] rt_rq[7]:/ [ 324.141069] [c4] CPU PMU: CPU4 reading wrong counter -1 [ 324.141076] [c7] CPU PMU: CPU7 reading wrong counter -1 [ 324.141082] [c0] .rt_nr_running : 0 [ 324.141088] [c6] CPU PMU: CPU6 reading wrong counter -1 [ 324.141095] [c7] CPU PMU: CPU7 reading wrong counter -1 [ 324.141101] [c0] .rt_throttled : 0 [ 324.141108] [c7] CPU PMU: CPU7 reading wrong counter -1 [ 324.141116] [c0] .rt_time : 0.797500 [ 324.141123] [c0] .rt_runtime : 950.000000 [ 324.141133] [c0] [ 324.141133] runnable tasks: [ 324.141133] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [ 324.141133] ---------------------------------------------------------------------------------------------------------- [ 324.141194] [c0] [ 324.141314] [c6] CPU6: stopping [ 324.141327] [c6] CPU: 6 PID: 304 Comm: systemd-journal Not tainted 3.10.96+ #22 [ 324.141349] [c6] Backtrace: [ 324.141370] [c6] [<c0012434>] (dump_backtrace+0x0/0x114) from [<c0012770>] (show_stack+0x20/0x24) [ 324.141415] [c6] r6:00000006 r5:00000000 r4:c0913384 r3:00000000 [ 324.141430] [c6] [<c0012750>] (show_stack+0x0/0x24) from [<c0617c48>] (dump_stack+0x20/0x28) [ 324.141442] [c6] [<c0617c28>] (dump_stack+0x0/0x28) from [<c0013ef8>] (handle_IPI+0x188/0x1bc) [ 324.141457] [c6] [<c0013d70>] (handle_IPI+0x0/0x1bc) from [<c0008584>] (gic_handle_irq+0x64/0x6c) [ 324.141516] [c6] r8:b6f552ac r7:f0002000 r6:dd2e5fb0 r5:c091f284 r4:f000200c [ 324.141516] r3:00001005 [ 324.141531] [c6] [<c0008520>] (gic_handle_irq+0x0/0x6c) from [<c061e6c0>] (__irq_usr+0x40/0x60) [ 324.141541] [c6] Exception stack(0xdd2e5fb0 to 0xdd2e5ff8) [ 324.141553] [c6] 5fa0: be9eac50 b6e35d15 00000000 b6ee057d [ 324.141567] [c6] 5fc0: b6f75238 17da790d 00000001 b6ed1000 b6f552ac b6f565b4 b6f565b4 be9eacee [ 324.141578] [c6] 5fe0: b6f68f04 be9eac40 b6e35f21 b6ee057c a00f0030 ffffffff [ 324.141621] [c6] r7:b6ed1000 r6:ffffffff r5:a00f0030 r4:b6ee057c [ 324.141639] [c6] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 324.141650] [c6] pgd = dd384000 [ 324.141670] [c6] [00000000] *pgd=00000000 [ 324.141687] [c6] Internal error: Oops: 805 [#1] PREEMPT SMP ARM [ 324.141802] [c6] Modules linked in: binfmt_misc cfg80211 rfkill smsc95xx usbnet joydev ads7846 spidev ina231_sensor spi_s3c64xx i2c_s3c2410 fuse [ 324.141816] [c6] CPU: 6 PID: 304 Comm: systemd-journal Not tainted 3.10.96+ #22 [ 324.141827] [c6] task: dde035c0 ti: dd2e4000 task.ti: dd2e4000 [ 324.141839] [c6] PC is at exynos_ss_save_context+0x38/0x224 [ 324.141852] [c6] LR is at exynos_ss_save_context+0x20/0x224 [ 324.141865] [c6] pc : [<c00278a0>] lr : [<c0027888>] psr: 200f0193 [ 324.141865] sp : dd2e5f48 ip : dd2e5f48 fp : dd2e5f64 [ 324.141875] [c6] r10: b6f565b4 r9 : b6f565b4 r8 : dd2e5fb0 [ 324.141886] [c6] r7 : 00000005 r6 : c09116a0 r5 : c091f058 r4 : 600f0193 [ 324.141895] [c6] r3 : 00000000 r2 : 01528000 r1 : 10c5387d r0 : 00000006 [ 324.141906] [c6] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 324.141917] [c6] Control: 10c5387d Table: 5d38406a DAC: 00000015 [ 324.141925] [c6] CPU 2 / CLUSTER 0 [ 324.141935] [c6] DFSR: 00000805, ADFSR: 00000000, IFSR: 00000007, AIFSR: 00000000 [ 324.141944] [c6] CPUMERRSR: 00000000_00000000, L2MERRSR: 00000000_00000000 [ 324.141955] [c6] [ 324.141955] PC: 0xc0027820: [ 324.142045] [c6] 7820 c098ad34 c07e1c44 e1a0c00d e92dd818 e24cb004 e92d4000 e8bd4000 e3010c54 [ 324.142132] [c6] 7840 e30c11ec e34c007e e34c1062 e3a04000 eb17b49e e3a034f9 e5834010 ebffdbaa [ 324.142218] [c6] 7860 e1a00004 e89da818 e1a0c00d e92dd878 e24cb004 e92d4000 e8bd4000 e10f4000 [ 324.142302] [c6] 7880 f10c0080 eb095b80 e59f51f0 e59f61f0 e1a03006 e7952100 e7923003 ee111f10 [ 324.142387] [c6] 78a0 e5831000 ee121f10 e5831004 ee121f30 e5831008 ee121f50 e583100c ee131f10 [ 324.142472] [c6] 78c0 e5831010 ee151f10 e5831014 ee161f10 e5831018 ee151f30 e583101c ee161f50 [ 324.142554] [c6] 78e0 e5831020 ee1a1f12 e583102c ee1a1f32 e5831030 ee1d1f10 e5831034 ee1d1f30 [ 324.142638] [c6] 7900 e5831038 ee1d1f50 e583103c ee1d1f70 e5831040 ee1d1f90 e5831044 eb095b5a [ 324.142648] [c6] [ 324.142648] LR: 0xc0027808: [ 324.142734] [c6] 7808 e3a0300a e7c53006 e3a034f9 e5832014 e24bd028 e89daff0 c098ad34 c07e1c44 [ 324.142817] [c6] 7828 e1a0c00d e92dd818 e24cb004 e92d4000 e8bd4000 e3010c54 e30c11ec e34c007e [ 324.142899] [c6] 7848 e34c1062 e3a04000 eb17b49e e3a034f9 e5834010 ebffdbaa e1a00004 e89da818 [ 324.142987] [c6] 7868 e1a0c00d e92dd878 e24cb004 e92d4000 e8bd4000 e10f4000 f10c0080 eb095b80 [ 324.143069] [c6] 7888 e59f51f0 e59f61f0 e1a03006 e7952100 e7923003 ee111f10 e5831000 ee121f10 [ 324.143153] [c6] 78a8 e5831004 ee121f30 e5831008 ee121f50 e583100c ee131f10 e5831010 ee151f10 [ 324.143238] [c6] 78c8 e5831014 ee161f10 e5831018 ee151f30 e583101c ee161f50 e5831020 ee1a1f12 [ 324.143322] [c6] 78e8 e583102c ee1a1f32 e5831030 ee1d1f10 e5831034 ee1d1f30 e5831038 ee1d1f50 [ 324.143332] [c6] [ 324.143332] SP: 0xdd2e5ec8: [ 324.143418] [c6] 5ec8 c002f358 c0266b5b dd2e5ef0 00000008 dd2e5ef0 dd2e5f44 c00278a0 200f0193 [ 324.143502] [c6] 5ee8 ffffffff dd2e5f34 dd2e5f64 dd2e5f00 c061e498 c00083a4 00000006 10c5387d [ 324.143584] [c6] 5f08 01528000 00000000 600f0193 c091f058 c09116a0 00000005 dd2e5fb0 b6f565b4 [ 324.143669] [c6] 5f28 b6f565b4 dd2e5f64 dd2e5f48 dd2e5f48 c0027888 c00278a0 200f0193 ffffffff [ 324.143753] [c6] 5f48 00000000 c0913384 00000000 00000006 dd2e5f8c dd2e5f68 c0013efc c0027874 [ 324.143841] [c6] 5f68 00001005 f000200c c091f284 dd2e5fb0 f0002000 b6f552ac dd2e5fac dd2e5f90 [ 324.143924] [c6] 5f88 c0008584 c0013d7c b6ee057c a00f0030 ffffffff b6ed1000 00000000 dd2e5fb0 [ 324.144010] [c6] 5fa8 c061e6c0 c000852c be9eac50 b6e35d15 00000000 b6ee057d b6f75238 17da790d [ 324.144021] [c6] [ 324.144021] IP: 0xdd2e5ec8: [ 324.144106] [c6] 5ec8 c002f358 c0266b5b dd2e5ef0 00000008 dd2e5ef0 dd2e5f44 c00278a0 200f0193 [ 324.144192] [c6] 5ee8 ffffffff dd2e5f34 dd2e5f64 dd2e5f00 c061e498 c00083a4 00000006 10c5387d [ 324.144275] [c6] 5f08 01528000 00000000 600f0193 c091f058 c09116a0 00000005 dd2e5fb0 b6f565b4 [ 324.144356] [c6] 5f28 b6f565b4 dd2e5f64 dd2e5f48 dd2e5f48 c0027888 c00278a0 200f0193 ffffffff [ 324.144435] [c6] 5f48 00000000 c0913384 00000000 00000006 dd2e5f8c dd2e5f68 c0013efc c0027874 [ 324.144521] [c6] 5f68 00001005 f000200c c091f284 dd2e5fb0 f0002000 b6f552ac dd2e5fac dd2e5f90 [ 324.144601] [c6] 5f88 c0008584 c0013d7c b6ee057c a00f0030 ffffffff b6ed1000 00000000 dd2e5fb0 [ 324.144689] [c6] 5fa8 c061e6c0 c000852c be9eac50 b6e35d15 00000000 b6ee057d b6f75238 17da790d [ 324.144700] [c6] [ 324.144700] FP: 0xdd2e5ee4: [ 324.144779] [c6] 5ee4 200f0193 ffffffff dd2e5f34 dd2e5f64 dd2e5f00 c061e498 c00083a4 00000006 [ 324.144865] [c6] 5f04 10c5387d 01528000 00000000 600f0193 c091f058 c09116a0 00000005 dd2e5fb0 [ 324.144951] [c6] 5f24 b6f565b4 b6f565b4 dd2e5f64 dd2e5f48 dd2e5f48 c0027888 c00278a0 200f0193 [ 324.145039] [c6] 5f44 ffffffff 00000000 c0913384 00000000 00000006 dd2e5f8c dd2e5f68 c0013efc [ 324.145121] [c6] 5f64 c0027874 00001005 f000200c c091f284 dd2e5fb0 f0002000 b6f552ac dd2e5fac [ 324.145202] [c6] 5f84 dd2e5f90 c0008584 c0013d7c b6ee057c a00f0030 ffffffff b6ed1000 00000000 [ 324.145291] [c6] 5fa4 dd2e5fb0 c061e6c0 c000852c be9eac50 b6e35d15 00000000 b6ee057d b6f75238 [ 324.145379] [c6] 5fc4 17da790d 00000001 b6ed1000 b6f552ac b6f565b4 b6f565b4 be9eacee b6f68f04 [ 324.145389] [c6] [ 324.145389] R5: 0xc091efd8: [ 324.145469] [c6] efd8 c091efd8 c091efd8 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.145555] [c6] eff8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.145642] [c6] f018 000000c8 00000008 00000009 00009000 0000000f c1e4b100 c1e4b0c0 c1e4b080 [ 324.145724] [c6] f038 c1e03000 00000000 00000007 0000002c c1e4b000 c1e4b040 00000001 00001000 [ 324.145808] [c6] f058 014f2000 014fb000 01504000 0150d000 01516000 0151f000 01528000 01531000 [ 324.145895] [c6] f078 0004f200 00000001 0005f772 000be9ff 0000e44f 00002000 00000000 00000032 [ 324.145977] [c6] f098 0000fffa 00000001 df019c00 00000001 00000000 c061039c c0131324 c012eeac [ 324.146061] [c6] f0b8 c012c554 00000000 c012fad8 c012c538 c012c440 00000000 00000000 c012aea0 [ 324.146070] [c6] [ 324.146070] R6: 0xc0911620: [ 324.146151] [c6] 1620 00080000 00000001 0001f30a 00000004 00000000 00000000 00000001 000d1ea5 [ 324.146228] [c6] 1640 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.146310] [c6] 1660 00000000 887a999d 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.146396] [c6] 1680 0000001c a6211578 00000000 00000000 559e7d8a 32652688 00000000 00000000 [ 324.146483] [c6] 16a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.146564] [c6] 16c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.146645] [c6] 16e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 324.146729] [c6] 1700 000081a4 00000744 559e7d88 559e7d8a 558348a1 00000000 00010000 00000008 [ 324.146739] [c6] [ 324.146739] R8: 0xdd2e5f30: [ 324.146825] [c6] 5f30 dd2e5f48 dd2e5f48 c0027888 c00278a0 200f0193 ffffffff 00000000 c0913384 [ 324.146909] [c6] 5f50 00000000 00000006 dd2e5f8c dd2e5f68 c0013efc c0027874 00001005 f000200c [ 324.146992] [c6] 5f70 c091f284 dd2e5fb0 f0002000 b6f552ac dd2e5fac dd2e5f90 c0008584 c0013d7c [ 324.147077] [c6] 5f90 b6ee057c a00f0030 ffffffff b6ed1000 00000000 dd2e5fb0 c061e6c0 c000852c [ 324.147160] [c6] 5fb0 be9eac50 b6e35d15 00000000 b6ee057d b6f75238 17da790d 00000001 b6ed1000 [ 324.147247] [c6] 5fd0 b6f552ac b6f565b4 b6f565b4 be9eacee b6f68f04 be9eac40 b6e35f21 b6ee057c [ 324.147335] [c6] 5ff0 a00f0030 ffffffff 00000000 00000000 dd2e6040 dc40fa80 dcbaa0a8 c092f72c [ 324.147423] [c6] 6010 dd2e6010 dd2e6010 00000000 dead4ead ffffffff ffffffff c0d8abc4 00000000 [ 324.147435] [c6] Process systemd-journal (pid: 304, stack limit = 0xdd2e4238) [ 324.147446] [c6] Stack: (0xdd2e5f48 to 0xdd2e6000) [ 324.147456] [c6] 5f40: 00000000 c0913384 00000000 00000006 dd2e5f8c dd2e5f68 [ 324.147468] [c6] 5f60: c0013efc c0027874 00001005 f000200c c091f284 dd2e5fb0 f0002000 b6f552ac [ 324.147478] [c6] 5f80: dd2e5fac dd2e5f90 c0008584 c0013d7c b6ee057c a00f0030 ffffffff b6ed1000 [ 324.147488] [c6] 5fa0: 00000000 dd2e5fb0 c061e6c0 c000852c be9eac50 b6e35d15 00000000 b6ee057d [ 324.147499] [c6] 5fc0: b6f75238 17da790d 00000001 b6ed1000 b6f552ac b6f565b4 b6f565b4 be9eacee [ 324.147511] [c6] 5fe0: b6f68f04 be9eac40 b6e35f21 b6ee057c a00f0030 ffffffff 00000000 00000000 [ 324.147532] [c6] Backtrace: [ 324.147548] [c6] [<c0027868>] (exynos_ss_save_context+0x0/0x224) from [<c0013efc>] (handle_IPI+0x18c/0x1bc) [ 324.147588] [c6] r6:00000006 r5:00000000 r4:c0913384 r3:00000000 [ 324.147599] [c6] [<c0013d70>] (handle_IPI+0x0/0x1bc) from [<c0008584>] (gic_handle_irq+0x64/0x6c) [ 324.147655] [c6] r8:b6f552ac r7:f0002000 r6:dd2e5fb0 r5:c091f284 r4:f000200c [ 324.147655] r3:00001005 [ 324.147668] [c6] [<c0008520>] (gic_handle_irq+0x0/0x6c) from [<c061e6c0>] (__irq_usr+0x40/0x60) [ 324.147680] [c6] Exception stack(0xdd2e5fb0 to 0xdd2e5ff8) [ 324.147692] [c6] 5fa0: be9eac50 b6e35d15 00000000 b6ee057d [ 324.147705] [c6] 5fc0: b6f75238 17da790d 00000001 b6ed1000 b6f552ac b6f565b4 b6f565b4 be9eacee [ 324.147717] [c6] 5fe0: b6f68f04 be9eac40 b6e35f21 b6ee057c a00f0030 ffffffff [ 324.147754] [c6] r7:b6ed1000 r6:ffffffff r5:a00f0030 r4:b6ee057c [ 324.147766] [c6] Code: e1a03006 e7952100 e7923003 ee111f10 (e5831000) [ 324.147789] [c6] ---[ end trace 052283e3befd3ff6 ]--- [ 326.843716] [c0] SMP: failed to stop secondary CPUs [ 335.098918] [c1] CPU PMU: CPU1 reading wrong counter -1 [ 335.104118] [c1] CPU PMU: CPU1 reading wrong counter -1 [ 335.109324] [c1] CPU PMU: CPU1 reading wrong counter -1 [ 335.114711] [c1] BUG: soft lockup - CPU#1 stuck for 27s! [watchdog/1:12] [ 335.121211] [c1] Modules linked in: binfmt_misc cfg80211 rfkill smsc95xx usbnet joydev ads7846 spidev ina231_sensor spi_s3c64xx i2c_s3c2410 fuse [ 335.134141] [c1] [ 335.136056] [c1] CPU: 1 PID: 12 Comm: watchdog/1 Tainted: G D 3.10.96+ #22 [ 335.143772] [c1] task: df2e4b40 ti: df2f4000 task.ti: df2f4000 [ 335.149589] [c1] PC is at _raw_spin_unlock_irq+0x34/0x5c [ 335.154878] [c1] LR is at _raw_spin_unlock_irq+0x30/0x5c [ 335.160170] [c1] pc : [<c061df3c>] lr : [<c061df38>] psr: 60000013 [ 335.160170] sp : df2f5de8 ip : df2f5de8 fp : df2f5dfc [ 335.172057] [c1] r10: de26e8d0 r9 : c091f058 r8 : df2f4000 [ 335.177700] [c1] r7 : 00000000 r6 : ddada040 r5 : c1e0f280 r4 : c1e0f280 [ 335.184639] [c1] r3 : 000012d4 r2 : 00000001 r1 : 000004a8 r0 : c1e0f280 [ 335.191582] [c1] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 335.199301] [c1] Control: 10c5387d Table: 5c6f806a DAC: 00000015 [ 335.205462] [c1] CPU 1 / CLUSTER 1 [ 335.208847] [c1] DFSR: 00000817, ADFSR: 00000000, IFSR: 00000007, AIFSR: 00000000 [ 335.216309] [c1]
I reverted the kernel and now I can see the Mali counters available from the userspace gator available on Streamline.
When I started a capture however, the target crashed (I had posted another post with dmesg error logs, but I guess I cannot put the log in the thread. I can attach a log if you need it.
I do remember reading something about the Odroid XU3 freezing on using Streamline. I found it on (https://community.arm.com/tools/f/discussions/5787/ds5-streamline-with-odroid-xu3). However this seems to be due to the gator.ko compilation issue. I should not be having this problem since I am using userspace daemon.
The CPU counters are the ones that crash the system. If I do not read from the CPU PMU, then things work smoothly. Trying to export the capture data into text or csv formats so that I can analyse them.
You mentioned "This is because Streamline knows how to interact with the Mali driver to get the counters" - this means we should be able to interact with Mali driver to obtain GPU counter data directly on the board right? The github page also mentions something about the perf API. Are there any patches that can help me read this data directly from the board?
Manoj.
Hi Lukas,
Thank you for your response. I am trying to follow the documentation you linked. There is an issue with the config file, but I will fix that and try to enable the gator driver with Mali plugins.
The differences between editions link was useful. It says that Community Edition should ideally work, but I am unable to use it as mentioned in the comment to Stephen.
Are you aware of any methods/patches to be able to obtain Mali counter data on the board itself?
Hi Manoj
Glad to see that you have managed to get GPU counters out of the system using the userspace gator. The issue you are describing seems to be a problem with the way that the board has been setup. I will ask internally if we have any OdroidXU3s and what the current status of them is.
In the meantime could you look at using the perf application to collect your CPU counters. You are correct that Streamline uses the perf api to collect CPU counter data. So if you manage to collect valid data from the perf application this will point to a bug in Streamline. If the perf application fails to collect valid data then it is a problem with the way the system is configured.
As an aside if you manage to collect perf data from the perf application you should be able to import this data into Streamline directly until we can solve the issue. More information on this can be found in Chaprter 3.3 in the Streamline User Guide.
Hope this helps,
Stephen
I can use Linux perf application on the same board to collect valid CPU counter data. I do not have any issue with it.
I would rather prefer if I could collect GPU counter data like I collect perf CPU data, on the board directly.
Thank you for getting back to me I will get someone from the Streamline team to understand why this didn't work.
Kind regards,
I have looked into this issue with the Streamline team and unfortunately it is a kernel bug. Around the time that this kernel came out some investigation was done by the team. This is a known issue and is documented in the readme that comes with gator.
The solution unfortunately is to either update the kernel version to a version that patches the problem or to use the gator.ko to capture the CPU and the GPU counters. Which would mean you would need to build gator.ko correctly.
Looking at the latest kernel version it is 3.10.106 hopefully this will include the patch that is needed. However the actual fix is in 3.14 so we need to hope that the fix has been backported to this version.
So to recap we recommended:
1) Trying the latest version of the kernel from the hardkernel.
2) Try building gator.ko with Mali support flags following the readme.
3) IF nethither work. Do you CPU analyis with gator.ko or importing the perf information into Streamline and then using the userspace to get the GPU counters seperately.