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build images as hard float OS!

info and downloads:
http://fail.pp.ua/board/1

update mainline kernel 4.9.6

update legacy 3.4.113, mainline 4.10.1 kernel and images

packages: ChangeLog.txt

update legacy 3.4.113, mainline 4.14.4 kernel and images

packages: ChangeLog.txt

Increasing the performance of native SATA to A10/A20 write speeds up to 120 MB/s with 36/45 MB/s, reading performance is about 200 MB/s.
patch is used in kernel 4.19.38 and above.

Quote:

Originally Posted by sndwvs (Post 5996904)

Increasing the performance of native SATA to A10/A20 write speeds up to 120 MB/s with 36/45 MB/s, reading performance is about 200 MB/s.
patch is used in kernel 4.19.38 and above.

I tried this, not sure about read performance yet.

Followed this How to Compile Just One Kernel Module to get new patched ahci_sunxi.ko.

Quote:

Originally Posted by glorsplitz (Post 6008052)

I tried this, not sure about read performance yet.

Followed this How to Compile Just One Kernel Module to get new patched ahci_sunxi.ko.

It can be assembled by a module, I have it assembled as a component of the core.

Code:

uname -a

Linux cubietruck 4.19.44+ #1 SMP Sun May 19 19:41:24 EEST 2019 armv7l Allwinner sun7i (A20) Family GNU/Linux

Code:

uptime

 21:37:24 up 21 days, 36 min,  1 user,  load average: 3.49, 1.67, 0.85

Code:

smartctl -a /dev/sda

smartctl 7.0 2018-12-30 r4883 [armv7l-linux-4.19.44+] (local build)

Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org



=== START OF INFORMATION SECTION ===

Model Family:    Samsung based SSDs

Device Model:    Samsung SSD 860 EVO 250GB

LU WWN Device Id: 5 002538 e404fed9a

Firmware Version: RVT01B6Q

User Capacity:    250,059,350,016 bytes [250 GB]

Sector Size:      512 bytes logical/physical

Rotation Rate:    Solid State Device

Form Factor:      2.5 inches

Device is:        In smartctl database [for details use: -P show]

ATA Version is:  ACS-4 T13/BSR INCITS 529 revision 5

SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)

Local Time is:    Sat Jun 22 21:40:07 2019 EEST

SMART support is: Available - device has SMART capability.

SMART support is: Enabled

Code:

hdparm -Tt /dev/sda



/dev/sda:

 Timing cached reads:  682 MB in  2.00 seconds = 341.04 MB/sec

 Timing buffered disk reads: 466 MB in  3.00 seconds = 155.29 MB/sec

ssd

Code:

hdparm -Tt /dev/sda

/dev/sda:

 Timing cached reads:  700 MB in  2.00 seconds = 349.64 MB/sec

 Timing buffered disk reads: 442 MB in  3.01 seconds = 146.78 MB/sec

disk

Code:

hdparm -Tt /dev/sdb

/dev/sdb:

 Timing cached reads:  668 MB in  2.00 seconds = 333.71 MB/sec

 Timing buffered disk reads: 334 MB in  3.00 seconds = 111.24 MB/sec

they're both connected to Port Multiplier Controller Card

update:

kernel 5.4.55

works stably on the old kernel 5.4.13, it constantly hangs on new kernels. expected due to disk I/O sata ssd, but recent tests show that this is due to network driver/interface. if you translate it to 100Mbps/Full, hangs do not appear.

Code:

[  358.930552] ------------[ cut here ]------------

[  358.930797] WARNING: CPU: 0 PID: 809 at include/linux/bvec.h:101 svc_tcp_recvfrom+0x6a5/0x714 [sunrpc]

[  358.931054] Attempted to advance past end of bvec iter

[  358.931060] Modules linked in: xfs aes_arm_bs crypto_simd dm_crypt dm_mod dax nfsv3 nfs fscache nfsd auth_rpcgss nfs_acl lockd grace sunrpc xt_multiport ipt_REJECT nf_reject_ipv4 xt_state xt_conntrack xt_tcpudp iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter ip_tables x_tables brcmfmac brcmutil cfg80211 hci_uart btrtl btbcm bluetooth axp20x_adc axp20x_battery ecdh_generic axp20x_usb_power rfkill industrialio evdev pinctrl_axp209 lima ecc snd_soc_spdif_tx gpu_sched sunxi_cir sun4i_ts pwm_sun4i sunxi sun4i_ss phy_generic sunxi_cedrus(C) display_connector uio_pdrv_genirq pwrseq_simple uio cpufreq_dt

[  358.931450] CPU: 0 PID: 809 Comm: nfsd Tainted: G        C        5.8.7 #1

[  358.931461] Hardware name: Allwinner sun7i (A20) Family

[  358.931517] [<c010d6cd>] (unwind_backtrace) from [<c0109a7d>] (show_stack+0x11/0x14)

[  358.931546] [<c0109a7d>] (show_stack) from [<c056d9e9>] (dump_stack+0x75/0x84)

[  358.931577] [<c056d9e9>] (dump_stack) from [<c011ba1f>] (__warn+0xbb/0xbc)

[  358.931599] [<c011ba1f>] (__warn) from [<c011bccf>] (warn_slowpath_fmt+0x63/0x80)

[  358.931750] [<c011bccf>] (warn_slowpath_fmt) from [<bfa54921>] (svc_tcp_recvfrom+0x6a5/0x714 [sunrpc])

[  358.931987] [<bfa54921>] (svc_tcp_recvfrom [sunrpc]) from [<bfa5ede3>] (svc_recv+0x657/0x804 [sunrpc])

[  358.932313] [<bfa5ede3>] (svc_recv [sunrpc]) from [<bfad0d95>] (nfsd+0x9d/0x104 [nfsd])

[  358.932463] [<bfad0d95>] (nfsd [nfsd]) from [<c0135a2b>] (kthread+0xeb/0x10c)

[  358.932486] [<c0135a2b>] (kthread) from [<c0100159>] (ret_from_fork+0x11/0x38)

[  358.932495] Exception stack(0xeb9d1fb0 to 0xeb9d1ff8)

[  358.932508] 1fa0:                                    00000000 00000000 00000000 00000000

[  358.932524] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[  358.932538] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000

[  358.932548] ---[ end trace 730e8ee18d48aaed ]---