VirtualBox

Custom Query (16363 matches)

Filters
 
Or
 
  
 
Columns

Show under each result:


Results (1765 - 1767 of 16363)

Ticket Resolution Summary Owner Reporter
#7431 obsolete With 2 GB guest RAM VirtualBox is twenty times slower than with 700 MB RAM Jaan
Description

Steps to reproduce:

  1. Download Ubuntu 10.04 32-bit Live CD ISO
  2. Create a virtual machine with 2048 MB RAM and that ISO as CD-ROM and no hard drive
  3. Run the virtual machine
  4. Run "sudo apt-get install openjdk-6-jdk" on the guest to install Java
  5. Copy the file SerTest.java (in attachment) to the guest's home directory
  6. Run the following commands on the guest:
    javac SerTest.java
    java SerTest 1000 100 0
    

I get output like this:

Creating 1000 objects... Done in 0.026094316000000003 seconds.
Writing to test.ser... Done in 0.23731131500000002 seconds.
Reading from test.ser... Done in 7.03051558 seconds.
Checksum: -406759103

The 7 seconds for reading the file is an enormously long time.

If I change the virtual machine's RAM size to 700 MB and and repeat points 3-6 then I get the following, much better time:

Creating 1000 objects... Done in 0.017042552000000002 seconds.
Writing to test.ser... Done in 0.11916187800000001 seconds.
Reading from test.ser... Done in 0.36389537600000005 seconds.
Checksum: -884318403

Increasing the object count in the test program increases run time proportionally, e. g. for "java SerTest 10000 100 0" the times are 70 seconds and 3 seconds for 2 GB RAM and 700 MB RAM, respectively.

The host is 64-bit Windows 7 with 4 GB RAM and Intel Core2 Duo E6400 processor.

#12090 obsolete Can't Access the Kernel Driver on Windows JackB
Description

The driver VBoxDrv.inf had to be installed by manually right-clicking it in the file system and choosing to install it. Installer didn't install the kernel mode driver and automatic startups failed.

#3001 fixed Chinese/Japanese characters are lost on the screen with Windows RDP client. JackieKu
Description

I encountered a problem with Windows RDP client 6.0.6001 (in XP 32bit and Vista x64). The guest OS is Windows XP SP3, while the host OS I tried Linux and Windows Vista (VirtualBox 2.0.6-2.1.0). Please see and compare the following two screen shots. The problem is some Chinese and Japanese characters are lost in some applications (eMule for example).

Correct screen shot (WinXP native RDP server)

Broken screen shot (VRDP)

As you can see in the second image, many text in the sidebar are disappeared. I tried all color depth and settings in the RDP client and it always occurs. Though it doesn't occur in Linux rdesktop (1.6.0) client.

Batch Modify
Note: See TracBatchModify for help on using batch modify.
Note: See TracQuery for help on using queries.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy