[Udpcast] Udpcast really slow on NEC AMD 64 3400+

-- Stephane. PS: I put some informations below: sam fév 11 02:40:20 root@sargenec:~ # cat /proc/cpuinfo processor       : 0 vendor_id       : AuthenticAMD cpu family      : 15 model           : 47 model name      : AMD Athlon(tm) 64 Processor 3400+ stepping        : 2 cpu MHz         : 2189.263 cache size      : 512 KB physical id     : 0 siblings        : 1 fdiv_bug        : no hlt_bug         : no f00f_bug        : no coma_bug        : no fpu             : yes fpu_exception   : yes cpuid level     : 1 wp              : yes flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 pni syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm bogomips        : 4308.99 sam fév 11 02:58:46 root@sargenec:~ # sam fév 11 07:46:53 root@sargenec:~ # lspci 0000:00:00.0 Host bridge: ATI Technologies Inc: Unknown device 5950 (rev 10) 0000:00:02.0 PCI bridge: ATI Technologies Inc: Unknown device 5a34 0000:00:11.0 IDE interface: ATI Technologies Inc: Unknown device 437a 0000:00:12.0 IDE interface: ATI Technologies Inc: Unknown device 4379 0000:00:13.0 USB Controller: ATI Technologies Inc: Unknown device 4374 0000:00:13.1 USB Controller: ATI Technologies Inc: Unknown device 4375 0000:00:13.2 USB Controller: ATI Technologies Inc: Unknown device 4373 0000:00:14.0 SMBus: ATI Technologies Inc: Unknown device 4372 (rev 10) 0000:00:14.1 IDE interface: ATI Technologies Inc: Unknown device 4376 0000:00:14.3 ISA bridge: ATI Technologies Inc: Unknown device 4377 0000:00:14.4 PCI bridge: ATI Technologies Inc: Unknown device 4371 0000:00:14.5 Multimedia audio controller: ATI Technologies Inc: Unknown device 4370 (rev 01) 0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge 0000:01:00.0 VGA compatible controller: ATI Technologies Inc: Unknown device 5b60 0000:01:00.1 Display controller: ATI Technologies Inc: Unknown device 5b70 0000:02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10) sam fév 11 07:49:04 root@sargenec:~ # sam fév 11 02:27:07 root@sargenec:~ # hdparm -I /dev/hda /dev/hda: ATA device, with non-removable media         Model Number:       ST380011A         Serial Number:      4LH0BNRN         Firmware Revision:  8.01 Standards:         Used: ATA/ATAPI-6 T13 1410D revision 2         Supported: 6 5 4 3 Configuration:         Logical         max     current         cylinders       16383   65535         heads           16      1         sectors/track   63      63         --         CHS current addressable sectors:    4128705         LBA    user addressable sectors:  156301488         LBA48  user addressable sectors:  156301488         device size with M = 1024*1024:       76319 MBytes         device size with M = 1000*1000:       80026 MBytes (80 GB) Capabilities:         LBA, IORDY(can be disabled)         bytes avail on r/w long: 4      Queue depth: 1         Standby timer values: spec'd by Standard, no device specific minimum         R/W multiple sector transfer: Max = 16  Current = ?         Recommended acoustic management value: 128, current value: 0         DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5              Cycle time: min=120ns recommended=120ns         PIO: pio0 pio1 pio2 pio3 pio4              Cycle time: no flow control=240ns  IORDY flow control=120ns Commands/features:         Enabled Supported:            *    READ BUFFER cmd            *    WRITE BUFFER cmd            *    Host Protected Area feature set            *    Look-ahead            *    Write cache            *    Power Management feature set                 Security Mode feature set                 SMART feature set            *    FLUSH CACHE EXT command            *    Mandatory FLUSH CACHE command            *    Device Configuration Overlay feature set            *    48-bit Address feature set                 SET MAX security extension            *    DOWNLOAD MICROCODE cmd            *    General Purpose Logging feature set            *    SMART self-test            *    SMART error logging Security:         Master password revision code = 65534                 supported         not     enabled         not     locked         not     frozen         not     expired: security count         not     supported: enhanced erase HW reset results:         CBLID- above Vih         Device num = 0 determined by CSEL Checksum: correct sam fév 11 02:27:53 root@sargenec:~ # -- Stephane.