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  • FrankMF

    [V] RockPro64 V2.1

    Frank's Resterampe
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  • FrankMF

    Quartz64 - Kühler

    Verschoben Quartz64 - A
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    FrankMF
    @thc013 I use an thermal pad. So i think it isn't an problem.
  • FrankMF

    linux-mainline-u-boot

    Angeheftet Images
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    FrankMF
    2020.01-ayufan-2014-gff2cdd38 released ayufan: rockchip: allow to boot scsi4, as JMS585 can have 5 drives
  • FrankMF

    ROCKPro64 - USB-C -> LAN

    ROCKPro64
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  • FrankMF

    ROCKPro64 - Kernel switchen

    Verschoben ROCKPro64
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  • FrankMF

    ROCKPro64 - PCIe SATA-Karte macht immer mal Probleme

    ROCKPro64
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    FrankMF
    Das ist das Ergebnis des Stresstests [ 2461.489468] ata2.00: exception Emask 0x10 SAct 0xffffffff SErr 0x400000 action 0x6 frozen [ 2461.490206] ata2.00: irq_stat 0x08000000, interface fatal error [ 2461.490732] ata2: SError: { Handshk } [ 2461.491062] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.491532] ata2.00: cmd 61/40:00:f8:a6:64/05:00:84:00:00/40 tag 0 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.492993] ata2.00: status: { DRDY } [ 2461.493327] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.493796] ata2.00: cmd 61/c0:08:38:ac:64/03:00:84:00:00/40 tag 1 ncq dma 491520 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.495181] ata2.00: status: { DRDY } [ 2461.495507] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.496276] ata2.00: cmd 61/c0:10:a0:f5:64/02:00:84:00:00/40 tag 2 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.497697] ata2.00: status: { DRDY } [ 2461.498029] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.498497] ata2.00: cmd 61/40:18:60:f8:64/05:00:84:00:00/40 tag 3 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.499886] ata2.00: status: { DRDY } [ 2461.500213] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.500681] ata2.00: cmd 61/c0:20:a0:fd:64/02:00:84:00:00/40 tag 4 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.502087] ata2.00: status: { DRDY } [ 2461.502416] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.502884] ata2.00: cmd 61/40:28:60:00:65/05:00:84:00:00/40 tag 5 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.505026] ata2.00: status: { DRDY } [ 2461.505378] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.505852] ata2.00: cmd 61/c0:30:a0:05:65/02:00:84:00:00/40 tag 6 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.507244] ata2.00: status: { DRDY } [ 2461.507572] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.508040] ata2.00: cmd 61/40:38:60:08:65/05:00:84:00:00/40 tag 7 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.509472] ata2.00: status: { DRDY } [ 2461.509808] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.510277] ata2.00: cmd 61/a0:40:a0:0d:65/02:00:84:00:00/40 tag 8 ncq dma 344064 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.511667] ata2.00: status: { DRDY } [ 2461.511994] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.512461] ata2.00: cmd 61/40:48:00:20:66/05:00:84:00:00/40 tag 9 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.514503] ata2.00: status: { DRDY } [ 2461.514850] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.515322] ata2.00: cmd 61/40:50:00:28:66/05:00:84:00:00/40 tag 10 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.516721] ata2.00: status: { DRDY } [ 2461.517084] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.517562] ata2.00: cmd 61/c0:58:40:2d:66/02:00:84:00:00/40 tag 11 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.519253] ata2.00: status: { DRDY } [ 2461.519595] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.520066] ata2.00: cmd 61/40:60:f8:9e:64/05:00:84:00:00/40 tag 12 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.521504] ata2.00: status: { DRDY } [ 2461.521840] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.522309] ata2.00: cmd 61/c0:68:38:a4:64/02:00:84:00:00/40 tag 13 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.523706] ata2.00: status: { DRDY } [ 2461.524033] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.524501] ata2.00: cmd 61/40:70:f8:af:64/05:00:84:00:00/40 tag 14 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.525925] ata2.00: status: { DRDY } [ 2461.526256] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.526725] ata2.00: cmd 61/c0:78:38:b5:64/02:00:84:00:00/40 tag 15 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.528122] ata2.00: status: { DRDY } [ 2461.528449] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.528939] ata2.00: cmd 61/40:80:f8:b7:64/05:00:84:00:00/40 tag 16 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.530339] ata2.00: status: { DRDY } [ 2461.530667] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.531136] ata2.00: cmd 61/c0:88:38:bd:64/02:00:84:00:00/40 tag 17 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.532532] ata2.00: status: { DRDY } [ 2461.532880] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.533357] ata2.00: cmd 61/40:90:f8:bf:64/05:00:84:00:00/40 tag 18 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.534754] ata2.00: status: { DRDY } [ 2461.535081] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.535549] ata2.00: cmd 61/c0:98:38:c5:64/02:00:84:00:00/40 tag 19 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.536970] ata2.00: status: { DRDY } [ 2461.537301] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.537769] ata2.00: cmd 61/40:a0:f8:c7:64/05:00:84:00:00/40 tag 20 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.539165] ata2.00: status: { DRDY } [ 2461.539491] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.539960] ata2.00: cmd 61/c0:a8:38:cd:64/02:00:84:00:00/40 tag 21 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.541381] ata2.00: status: { DRDY } [ 2461.541713] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.542182] ata2.00: cmd 61/40:b0:f8:cf:64/05:00:84:00:00/40 tag 22 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.543577] ata2.00: status: { DRDY } [ 2461.543905] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.544374] ata2.00: cmd 61/40:b8:f8:d7:64/05:00:84:00:00/40 tag 23 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.545790] ata2.00: status: { DRDY } [ 2461.546120] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.546589] ata2.00: cmd 61/c0:c0:38:dd:64/02:00:84:00:00/40 tag 24 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.547987] ata2.00: status: { DRDY } [ 2461.548314] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.548782] ata2.00: cmd 61/a8:c8:f8:df:64/05:00:84:00:00/40 tag 25 ncq dma 741376 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.550198] ata2.00: status: { DRDY } [ 2461.550530] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.550999] ata2.00: cmd 61/c0:d0:a0:e5:64/02:00:84:00:00/40 tag 26 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.552396] ata2.00: status: { DRDY } [ 2461.552723] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.553208] ata2.00: cmd 61/40:d8:60:e8:64/05:00:84:00:00/40 tag 27 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.554607] ata2.00: status: { DRDY } [ 2461.554935] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.555404] ata2.00: cmd 61/c0:e0:a0:ed:64/02:00:84:00:00/40 tag 28 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.556800] ata2.00: status: { DRDY } [ 2461.557145] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.557617] ata2.00: cmd 61/40:e8:60:f0:64/05:00:84:00:00/40 tag 29 ncq dma 688128 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.559012] ata2.00: status: { DRDY } [ 2461.559340] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.559807] ata2.00: cmd 61/c0:f0:38:d5:64/02:00:84:00:00/40 tag 30 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.561221] ata2.00: status: { DRDY } [ 2461.561552] ata2.00: failed command: WRITE FPDMA QUEUED [ 2461.562021] ata2.00: cmd 61/c0:f8:40:25:66/02:00:84:00:00/40 tag 31 ncq dma 360448 out res 40/00:50:00:28:66/00:00:84:00:00/40 Emask 0x10 (ATA bus error) [ 2461.563416] ata2.00: status: { DRDY } [ 2461.563752] ata2: hard resetting link [ 2471.561504] ata2: softreset failed (1st FIS failed) [ 2471.561959] ata2: hard resetting link [ 2481.560785] ata2: softreset failed (1st FIS failed) [ 2481.561238] ata2: hard resetting link [ 2516.561654] ata2: softreset failed (1st FIS failed) [ 2516.562109] ata2: limiting SATA link speed to 3.0 Gbps [ 2516.562113] ata2: hard resetting link [ 2521.561261] ata2: softreset failed (1st FIS failed) [ 2521.561715] ata2: reset failed, giving up [ 2521.562074] ata2.00: disabled [ 2521.562575] ata2: EH complete [ 2521.562677] sd 1:0:0:0: [sdb] tag#18 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.562686] sd 1:0:0:0: [sdb] tag#18 CDB: opcode=0x35 35 00 00 00 00 00 00 00 00 00 [ 2521.562701] print_req_error: I/O error, dev sdb, sector 0 [ 2521.562791] sd 1:0:0:0: [sdb] tag#20 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.562802] sd 1:0:0:0: [sdb] tag#19 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.562873] sd 1:0:0:0: [sdb] tag#19 CDB: opcode=0x2a 2a 00 84 66 25 40 00 02 c0 00 [ 2521.562888] print_req_error: I/O error, dev sdb, sector 2221286720 [ 2521.563107] sd 1:0:0:0: [sdb] tag#21 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.563126] sd 1:0:0:0: [sdb] tag#21 CDB: opcode=0x2a 2a 00 84 64 f0 60 00 05 40 00 [ 2521.563138] print_req_error: I/O error, dev sdb, sector 2221207648 [ 2521.563422] sd 1:0:0:0: [sdb] tag#22 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.563772] sd 1:0:0:0: [sdb] tag#20 CDB: opcode=0x2a 2a 00 84 64 d5 38 00 02 c0 00 [ 2521.564326] print_req_error: I/O error, dev sdb, sector 2221200696 [ 2521.564337] sd 1:0:0:0: [sdb] tag#22 CDB: opcode=0x2a 2a 00 84 64 ed a0 00 02 c0 00 [ 2521.564896] print_req_error: I/O error, dev sdb, sector 2221206944 [ 2521.565088] sd 1:0:0:0: [sdb] tag#26 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.565469] sd 1:0:0:0: [sdb] tag#26 CDB: opcode=0x2a 2a 00 84 64 dd 38 00 02 c0 00 [ 2521.565483] print_req_error: I/O error, dev sdb, sector 2221202744 [ 2521.565610] sd 1:0:0:0: [sdb] tag#23 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.566056] sd 1:0:0:0: [sdb] tag#23 CDB: opcode=0x2a 2a 00 84 64 e8 60 00 05 40 00 [ 2521.566069] print_req_error: I/O error, dev sdb, sector 2221205600 [ 2521.566183] sd 1:0:0:0: [sdb] tag#29 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.566641] sd 1:0:0:0: [sdb] tag#29 CDB: opcode=0x2a 2a 00 84 64 cd 38 00 02 c0 00 [ 2521.566654] print_req_error: I/O error, dev sdb, sector 2221198648 [ 2521.566954] sd 1:0:0:0: [sdb] tag#24 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.567224] sd 1:0:0:0: [sdb] tag#24 CDB: opcode=0x2a 2a 00 84 64 e5 a0 00 02 c0 00 [ 2521.567237] print_req_error: I/O error, dev sdb, sector 2221204896 [ 2521.567459] sd 1:0:0:0: [sdb] tag#30 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2521.567809] sd 1:0:0:0: [sdb] tag#30 CDB: opcode=0x2a 2a 00 84 64 c7 f8 00 05 40 00 [ 2521.567821] print_req_error: I/O error, dev sdb, sector 2221197304 [ 2521.584903] md: super_written gets error=10 [ 2521.585306] md/raid1:md0: Disk failure on dm-1, disabling device. md/raid1:md0: Operation continuing on 1 devices. [ 2526.581450] scsi_io_completion_action: 41779 callbacks suppressed [ 2526.581461] sd 1:0:0:0: [sdb] tag#27 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.581467] sd 1:0:0:0: [sdb] tag#27 CDB: opcode=0x2a 2a 00 84 66 7d 50 00 00 01 00 [ 2526.581469] print_req_error: 41780 callbacks suppressed [ 2526.581471] print_req_error: I/O error, dev sdb, sector 2221309264 [ 2526.582524] sd 1:0:0:0: [sdb] tag#28 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.582530] sd 1:0:0:0: [sdb] tag#28 CDB: opcode=0x2a 2a 00 84 66 7d 51 00 00 01 00 [ 2526.582534] print_req_error: I/O error, dev sdb, sector 2221309265 [ 2526.583366] sd 1:0:0:0: [sdb] tag#29 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.583370] sd 1:0:0:0: [sdb] tag#29 CDB: opcode=0x2a 2a 00 84 66 7d 52 00 00 01 00 [ 2526.583373] print_req_error: I/O error, dev sdb, sector 2221309266 [ 2526.584113] sd 1:0:0:0: [sdb] tag#30 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.584117] sd 1:0:0:0: [sdb] tag#30 CDB: opcode=0x2a 2a 00 84 66 7d 53 00 00 01 00 [ 2526.584119] print_req_error: I/O error, dev sdb, sector 2221309267 [ 2526.584960] sd 1:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.584968] sd 1:0:0:0: [sdb] tag#0 CDB: opcode=0x2a 2a 00 84 66 7d 54 00 00 01 00 [ 2526.584971] print_req_error: I/O error, dev sdb, sector 2221309268 [ 2526.585765] sd 1:0:0:0: [sdb] tag#1 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.585769] sd 1:0:0:0: [sdb] tag#1 CDB: opcode=0x2a 2a 00 84 66 7d 55 00 00 01 00 [ 2526.585772] print_req_error: I/O error, dev sdb, sector 2221309269 [ 2526.586461] sd 1:0:0:0: [sdb] tag#2 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.586465] sd 1:0:0:0: [sdb] tag#2 CDB: opcode=0x2a 2a 00 84 66 7d 56 00 00 01 00 [ 2526.586468] print_req_error: I/O error, dev sdb, sector 2221309270 [ 2526.587144] sd 1:0:0:0: [sdb] tag#3 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.587148] sd 1:0:0:0: [sdb] tag#3 CDB: opcode=0x2a 2a 00 84 66 7d 57 00 00 01 00 [ 2526.587150] print_req_error: I/O error, dev sdb, sector 2221309271 [ 2526.587734] sd 1:0:0:0: [sdb] tag#4 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.587737] sd 1:0:0:0: [sdb] tag#4 CDB: opcode=0x2a 2a 00 84 66 7d 58 00 00 01 00 [ 2526.587739] print_req_error: I/O error, dev sdb, sector 2221309272 [ 2526.588320] sd 1:0:0:0: [sdb] tag#5 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00 [ 2526.588323] sd 1:0:0:0: [sdb] tag#5 CDB: opcode=0x2a 2a 00 84 66 7d 59 00 00 01 00 [ 2526.588325] print_req_error: I/O error, dev sdb, sector 2221309273 Und, wieder eine Platte im Raid1 verloren rock64@rockpro64v_2_1:~$ cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 dm-1[2](F) dm-0[1] 1953379392 blocks super 1.2 [2/1] [_U] bitmap: 5/15 pages [20KB], 65536KB chunk unused devices: <none> Leider habe ich nicht die Kenntnisse um zu erkennen, woran das liegt.
  • FrankMF

    Unterstützung Lüfter

    ROCKPro64
    5
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    2k Aufrufe
    FrankMF
    Mit dem neuen Release hatte jemand das mal ausprobiert -> https://forum.frank-mankel.org/topic/795/fan-control-omv-auyfan-0-10-12-gitlab-ci-linux-build-184-kernel-5-6/6 Dieser Kernel kam zur Anwendung Linux rockpro64 5.6.0-1137-ayufan-ge57f05e7bf8f #ayufan SMP Wed Apr 15 10:16:02 UTC 2020 aarch64 GNU/Linux Dort stellt man dann fest, das sich eine Kleinigkeit geändert hat. Der Pfad und der Dateiname hat sich geändert. Kontrollieren kann man das mit nano /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1 Der Wert geht von 0 - 255, wie gehabt.
  • FrankMF

    stretch-minimal-rockpro64

    Verschoben Linux
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    FrankMF
    Mal ein Test was der Speicher so kann. rock64@rockpro64:~/tinymembench$ ./tinymembench tinymembench v0.4.9 (simple benchmark for memory throughput and latency) ========================================================================== == Memory bandwidth tests == == == == Note 1: 1MB = 1000000 bytes == == Note 2: Results for 'copy' tests show how many bytes can be == == copied per second (adding together read and writen == == bytes would have provided twice higher numbers) == == Note 3: 2-pass copy means that we are using a small temporary buffer == == to first fetch data into it, and only then write it to the == == destination (source -> L1 cache, L1 cache -> destination) == == Note 4: If sample standard deviation exceeds 0.1%, it is shown in == == brackets == ========================================================================== C copy backwards : 2812.7 MB/s C copy backwards (32 byte blocks) : 2811.9 MB/s C copy backwards (64 byte blocks) : 2632.8 MB/s C copy : 2667.2 MB/s C copy prefetched (32 bytes step) : 2633.5 MB/s C copy prefetched (64 bytes step) : 2640.8 MB/s C 2-pass copy : 2509.8 MB/s C 2-pass copy prefetched (32 bytes step) : 2431.6 MB/s C 2-pass copy prefetched (64 bytes step) : 2424.1 MB/s C fill : 4887.7 MB/s (0.5%) C fill (shuffle within 16 byte blocks) : 4883.0 MB/s C fill (shuffle within 32 byte blocks) : 4889.3 MB/s C fill (shuffle within 64 byte blocks) : 4889.2 MB/s --- standard memcpy : 2807.3 MB/s standard memset : 4890.4 MB/s (0.3%) --- NEON LDP/STP copy : 2803.7 MB/s NEON LDP/STP copy pldl2strm (32 bytes step) : 2802.1 MB/s NEON LDP/STP copy pldl2strm (64 bytes step) : 2800.7 MB/s NEON LDP/STP copy pldl1keep (32 bytes step) : 2745.5 MB/s NEON LDP/STP copy pldl1keep (64 bytes step) : 2745.8 MB/s NEON LD1/ST1 copy : 2801.9 MB/s NEON STP fill : 4888.9 MB/s (0.3%) NEON STNP fill : 4850.1 MB/s ARM LDP/STP copy : 2803.8 MB/s ARM STP fill : 4893.0 MB/s (0.5%) ARM STNP fill : 4851.7 MB/s ========================================================================== == Framebuffer read tests. == == == == Many ARM devices use a part of the system memory as the framebuffer, == == typically mapped as uncached but with write-combining enabled. == == Writes to such framebuffers are quite fast, but reads are much == == slower and very sensitive to the alignment and the selection of == == CPU instructions which are used for accessing memory. == == == == Many x86 systems allocate the framebuffer in the GPU memory, == == accessible for the CPU via a relatively slow PCI-E bus. Moreover, == == PCI-E is asymmetric and handles reads a lot worse than writes. == == == == If uncached framebuffer reads are reasonably fast (at least 100 MB/s == == or preferably >300 MB/s), then using the shadow framebuffer layer == == is not necessary in Xorg DDX drivers, resulting in a nice overall == == performance improvement. For example, the xf86-video-fbturbo DDX == == uses this trick. == ========================================================================== NEON LDP/STP copy (from framebuffer) : 602.5 MB/s NEON LDP/STP 2-pass copy (from framebuffer) : 551.6 MB/s NEON LD1/ST1 copy (from framebuffer) : 667.1 MB/s NEON LD1/ST1 2-pass copy (from framebuffer) : 605.6 MB/s ARM LDP/STP copy (from framebuffer) : 445.3 MB/s ARM LDP/STP 2-pass copy (from framebuffer) : 428.8 MB/s ========================================================================== == Memory latency test == == == == Average time is measured for random memory accesses in the buffers == == of different sizes. The larger is the buffer, the more significant == == are relative contributions of TLB, L1/L2 cache misses and SDRAM == == accesses. For extremely large buffer sizes we are expecting to see == == page table walk with several requests to SDRAM for almost every == == memory access (though 64MiB is not nearly large enough to experience == == this effect to its fullest). == == == == Note 1: All the numbers are representing extra time, which needs to == == be added to L1 cache latency. The cycle timings for L1 cache == == latency can be usually found in the processor documentation. == == Note 2: Dual random read means that we are simultaneously performing == == two independent memory accesses at a time. In the case if == == the memory subsystem can't handle multiple outstanding == == requests, dual random read has the same timings as two == == single reads performed one after another. == ========================================================================== block size : single random read / dual random read 1024 : 0.0 ns / 0.0 ns 2048 : 0.0 ns / 0.0 ns 4096 : 0.0 ns / 0.0 ns 8192 : 0.0 ns / 0.0 ns 16384 : 0.0 ns / 0.0 ns 32768 : 0.0 ns / 0.0 ns 65536 : 4.5 ns / 7.2 ns 131072 : 6.8 ns / 9.7 ns 262144 : 9.8 ns / 12.8 ns 524288 : 11.4 ns / 14.7 ns 1048576 : 16.0 ns / 22.6 ns 2097152 : 114.0 ns / 175.3 ns 4194304 : 161.7 ns / 219.9 ns 8388608 : 190.7 ns / 241.5 ns 16777216 : 205.3 ns / 250.5 ns 33554432 : 212.9 ns / 255.5 ns 67108864 : 222.3 ns / 271.1 ns