quo_vadis - Slashdot User

Comment Re:And Windows XP is still faster (Score 1) 228

by quo_vadis on Thursday January 22, 2009 @12:53PM (#26561357) Attached to: Generational Windows Multicore Performance Tests

XP is still faster by a large margin(20% to 40% depending on load scenario). FTFA

If you take the raw transaction times for the database and workflow tasks, then factor them against the average processor utilization for these same workloads, you see that Windows XP consumes roughly 7.2 and 40.7 billion CPU cycles, respectively, to complete a single pass of the database and messaging workflow transaction loops on our quad-core test bed. By contrast, Windows Vista takes 10.4 and 51.6 billion cycles for each workload, while Windows 7 consumes 10.9 and 48.4 billion cycles. Translation: On quad-core, the newer operating systems are at least 40 percent less efficient than XP in the database tasks and roughly 20 percent less efficient in the workflow tasks.

Comment Interesting (Score 4, Insightful) 228

by quo_vadis on Thursday January 22, 2009 @12:42PM (#26561173) Attached to: Generational Windows Multicore Performance Tests

It is interesting that WinXP is still better in terms of performance than either. The article suggests that Win7 and Vista would be better on systems that hypothetically had 16+ cores.

But nowadays, especially in tech savvy crowds like on /., the most popular thing to do is run VMs with virtual instances of Windows, which reduces all the hassles associated with dealing with win cruft. Got a worm? restore machine. Drivers made system unstable? restore machine. The vms are typically only given 1-2 cores, the exact use case where WinXP does way better than its successors.

So even if we move to a world with 16+ core processors, if Win7 cannot do better than a 10 year old OS, in common scenarios, how can that be called progress?

Comment I would say ... (Score 1) 997

by quo_vadis on Sunday December 07, 2008 @11:18AM (#26020435) Attached to: What Programming Language For Linux Development?

I suggest C/C++ and Tcl/Tk. Together, they are quite powerful and Tk GUIs also work in Windows. I know Python tends to be the scripting language of choice here on /. but Tcl is quite widely used and if you are working in a field which has Tcl legacy systems (like EDA tools) then learning Tcl will give you a huge boost. Other than that, Perl for command line scripting might also be handy.

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