T2000 Solaris10 一个简单的JAVA循环，慢的一塌糊涂，求助！

lovechina

我的T2000：

bash-3.00# prtdiag
System Configuration: Sun Microsystems sun4v SPARC Enterprise T2000
Memory size: 8064 Megabytes



================================ Virtual CPUs ================================




CPU ID Frequency Implementation Status
------ --------- ---------------------- -------
0 1000 MHz SUNW,UltraSPARC-T1 no-intr
1 1000 MHz SUNW,UltraSPARC-T1 no-intr
2 1000 MHz SUNW,UltraSPARC-T1 no-intr
3 1000 MHz SUNW,UltraSPARC-T1 no-intr
4 1000 MHz SUNW,UltraSPARC-T1 no-intr
5 1000 MHz SUNW,UltraSPARC-T1 no-intr
6 1000 MHz SUNW,UltraSPARC-T1 no-intr
7 1000 MHz SUNW,UltraSPARC-T1 no-intr
8 1000 MHz SUNW,UltraSPARC-T1 no-intr
9 1000 MHz SUNW,UltraSPARC-T1 no-intr
10 1000 MHz SUNW,UltraSPARC-T1 no-intr
11 1000 MHz SUNW,UltraSPARC-T1 no-intr
12 1000 MHz SUNW,UltraSPARC-T1 no-intr
13 1000 MHz SUNW,UltraSPARC-T1 no-intr
14 1000 MHz SUNW,UltraSPARC-T1 no-intr
15 1000 MHz SUNW,UltraSPARC-T1 on-line



======================= Physical Memory Configuration ========================
Segment Table:
--------------------------------------------------------------
Base Segment Interleave Bank Contains
Address Size Factor Size Modules
--------------------------------------------------------------
0x0 8 GB 4 2 GB MB/CMP0/CH0/R0/D0
MB/CMP0/CH0/R0/D1
2 GB MB/CMP0/CH1/R0/D0
MB/CMP0/CH1/R0/D1
2 GB MB/CMP0/CH2/R0/D0
MB/CMP0/CH2/R0/D1
2 GB MB/CMP0/CH3/R0/D0
MB/CMP0/CH3/R0/D1




========================= IO Configuration =========================



IO
Location Type Slot Path Name Model
----------- ----- ---- --------------------------------------------- ------------------------- ---------
IOBD/NET0 PCIE IOBD /pci@780/pci@0/pci@1/network@0 network-pciex8086,105e
IOBD/NET1 PCIE IOBD /pci@780/pci@0/pci@1/network@0,1 network-pciex8086,105e
IOBD/PCIE PCIE IOBD /pci@780/pci@0/pci@9/scsi@0 scsi-pciex1000,56 LSI,1064E
IOBD/NET2 PCIE IOBD /pci@7c0/pci@0/pci@2/network@0 network-pciex8086,105e
IOBD/NET3 PCIE IOBD /pci@7c0/pci@0/pci@2/network@0,1 network-pciex8086,105e
IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/isa@2 isa
IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/usb@5 usb-pciclass,0c0310
IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/usb@6 usb-pciclass,0c0310
IOBD/PCIX PCIX IOBD /pci@7c0/pci@0/pci@1/pci@0/ide@8 ide-pci10b9,5229



============================ Environmental Status ============================
Fan sensors:
------------------------------------------------------------
Location Sensor Status
------------------------------------------------------------
NNL084502N:CH/FT0/FM0 RS unknown
NNL084502N:CH/FT0/FM1 RS unknown
NNL084502N:CH/FT0/FM2 RS unknown
NNL084502N:CH/FT2 RS unknown



Temperature sensors:
------------------------------------------------------------
Location Sensor Status
------------------------------------------------------------
NNL084502N:CH/IOBD/IOB T_CORE unknown
NNL084502N:CH/IOBD T_AMB unknown
NNL084502N:CH/MB/CMP0 T_TCORE unknown
NNL084502N:CH/MB/CMP0 T_BCORE unknown
NNL084502N:CH/MB T_AMB unknown
NNL084502N:CH/PDB T_AMB unknown



Current sensors:
------------------------------------------------------------
Location Sensor Status
------------------------------------------------------------
NNL084502N:CH/MB I_VCORE unknown
NNL084502N:CH/MB I_VMEML unknown
NNL084502N:CH/MB I_VMEMR unknown



Current indicators:
------------------------------------------------------------
Location Indicator Condition
------------------------------------------------------------
NNL084502N:CH/IOBD I_USB0 unknown
NNL084502N:CH/IOBD I_USB1 unknown
NNL084502N:CH/FIOBD I_USB unknown



Voltage sensors:
------------------------------------------------------------
Location Sensor Status
------------------------------------------------------------
NNL084502N:CH/SC/BAT V_BAT unknown
NNL084502N:CH/IOBD V_+1V5 unknown
NNL084502N:CH/IOBD V_+1V8 unknown
NNL084502N:CH/IOBD V_+3V3MAIN unknown
NNL084502N:CH/IOBD V_+3V3STBY unknown
NNL084502N:CH/IOBD V_+1V unknown
NNL084502N:CH/IOBD V_+1V2 unknown
NNL084502N:CH/IOBD V_+5V unknown
NNL084502N:CH/IOBD V_-12V unknown
NNL084502N:CH/IOBD V_+12V unknown
NNL084502N:CH/MB V_+1V5 unknown
NNL084502N:CH/MB V_VMEML unknown
NNL084502N:CH/MB V_VMEMR unknown
NNL084502N:CH/MB V_VTTL unknown
NNL084502N:CH/MB V_VTTR unknown
NNL084502N:CH/MB V_+3V3STBY unknown
NNL084502N:CH/MB V_VCORE unknown



=====



public class Test {
        public static void main(String[] args){
                long start = System.currentTimeMillis();
                int n = 0;
                for (long i=0;i< 1e8;i++){
                        n ++;
                }
                System.out.println("time: "+(System.currentTimeMillis()-start)/1000.0);
        }
}


就这个类，在我的T2000 solaris10下面运行，需要13秒！在windows下，1秒都不要！！！
有高手吗？问了N个论坛，sun的论坛，都没有人吊你，solaris快完了，感觉。

求助！！！

lovechina

在线跟踪，希望大牛们出来说句话，万分感谢！折腾了我一个星期，我们的程序老是交易回滚，后来追查是java程序太慢。

sun搞什么飞机，自己的东西都这么慢，不知道他们自己是否用！还出来忽悠我们公司买了好多T2000.
自己的solaris，自己的T2000 SPARC，自己的JAVA，组合起来怎么就成了一块shit了呢！！！

lovechina

到sun论坛里问问题，没有人鸟你，实在是痛恨这个东西了！！！
:em29:
求高手帮助！！！

doging

不行了开个case吧

lovechina

不行了开个case吧
doging 发表于 2010-04-02 14:36

谢谢回复。开case？



难道大家都没有遇到这个问题吗？？？真想把那破机器从窗户扔出去

doging

具我所知T系列单核性能是很差的，如果进程都跑一个核上，那你就慢慢等吧

lovechina

关键是我的程序很简单，就一个函数，而已。不需要多线程。慢的跟老牛一样。真是恶心！

doging

你网上找一下这个角本吧procsystime，可以踪你角本，看哪里时间比较长

或者truss一下
truss -afE -tall aaa.sh

lovechina

回复 8# doging


  我没有用脚本，仅仅命令行：bash-3.00# java -cp /home/yxiang/test Test
一句话而已。

大家的JAVA程序都运行很快？没有遇到类似情况？？？被搞疯了。

doging

是看系统中调用的时间，不是看你进程的时间{:2_176:}