Re: [microblaze-uclinux] slow performance on XUP V2P

[alucero@xxxxxxxxx]

These delays are typical when you don't have the microblaze caches actived.



On Monday 05 December 2005 12:41, Deli Geng \(David\) wrote:
> Hi,
>
> I got a uClinux/MB up and running on the XUP V2P board. However, I feel the
> system is rather slow. The ping to the network interface is like,
>
> Reply from 192.168.1.103: bytes=32 time=8ms TTL=64
> Reply from 192.168.1.103: bytes=32 time=8ms TTL=64
> Reply from 192.168.1.103: bytes=32 time=8ms TTL=64
> Reply from 192.168.1.103: bytes=32 time=8ms TTL=64
>
> which I think it should be less than 1ms.
>
> Also, when I type "ls", it takes seconds to response. But the file system
> runs from RAM, how comes the delay?
>
> I wondered if I made any mistake in the configuration or the uClinux/MB is
> normally such slow.
>
> Cheers
>
> Deli
>
> PS. The boot log
>
> Linux version 2.4.31-uc0 (deli@aipc43) (gcc version 2.95.3-4 Xilinx EDK 6.3
> Build EDK_Gmm.12.2) #47 Mon Dec 5 12:04:37 GMT 2005 On node 0 totalpages:
> 131072
> zone(0): 131072 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> CPU: MICROBLAZE
> Kernel command line: ŸõÝä€âL€âl€zñü
> Console: xmbserial on UARTLite
> Calibrating delay loop... 2.98 BogoMIPS
> Memory: 512MB = 512MB total
> Memory: 516440KB available (1137K code, 1049K data, 44K init)
> Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
> Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
> Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
> Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Microblaze UARTlite serial driver version 1.00
> ttyS0 at 0x40600000 (irq = 2) is a Microblaze UARTlite
> Starting kswapd
> xgpio #0 at 0x40020000 mapped to 0x40020000
> xgpio #1 at 0x40040000 mapped to 0x40040000
> xgpio #2 at 0x40000000 mapped to 0x40000000
> Xilinx GPIO registered
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> eth0: using sgDMA mode.
> eth0: Xilinx EMAC #0 at 0x40C00000 mapped to 0x40C00000, irq=1
> eth0: id 2.0h; block id 7, type 1
> uclinux[mtd]: RAM probe address=0x801574e4 size=0xcc000
> uclinux[mtd]: root filesystem index=0
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 4096 buckets, 32Kbytes
> TCP: Hash tables configured (established 131072 bind 65536)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> VFS: Mounted root (romfs filesystem) readonly.
> Freeing init memory: 44K
> Mounting proc:
> Mounting var:
> Populating /var:
> Running local start scripts.
> Remounting / (rw):
> Mounting /etc/config:
> Populating /etc/config:
> flatfsd: Nonexistent or bad flatfs (-48), creating new one...
> flatfsd: Failed to write flatfs (-48): No such device
> flatfsd: Created 3 configuration files (822 bytes)
> Setting hostname:
> Setting up interface lo:
> Starting DHCP client:
> Starting thttpd:
> Jan  1 00:01:20 dhcpcd[37]: infinite IP address lease time. Exiting
>
> uclinux-auto login:
>
>
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-- 
Alejandro Lucero
OS3, OS Serveis i Solucions
www.os3sl.com
Ingeniería Informática
+34 665687168
Av.Benjamin Franklin
CEEI. Parque Tecnológico de Paterna
Valencia(Spain)

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