#random
Non-work banter and water cooler conversation
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Room k bahar hall me papa log hai
- The
priceandodometercolumns are numeric values stored as text. For each column, we: + remove any non-numeric characters. + convert the column to a numeric dtype. + rename the column toodometer_km
TIP: IT COMPILED OR IT RAN != IT IS CORRECT
Just because a program compiled(!) or even ran once or many times correctly does not mean the program is correct. Many events may have conspired to get you to a point where you believe it works, but then something changes and it stops. A common student reaction is to say (or yell)
“But it worked before!” and then blame the compiler, operating system,
hardware, or even (dare we say it) the professor. But the problem is usually right where you think it would be, in your code. Get to work and
debug it before you blame those other components.
Read this 😛 :
TIP: REBOOT IS USEFUL
Earlier on, we noted that the only solution to infinite loops (and similar
behaviors) under cooperative preemption is to reboot the machine. While
you may scoff at this hack, researchers have shown that reboot (or in general, starting over some piece of software) can be a hugely useful tool in
building robust systems [C+04].
Specifically, reboot is useful because it moves software back to a known
and likely more tested state. Reboots also reclaim stale or leaked resources (e.g., memory) which may otherwise be hard to handle. Finally,
reboots are easy to automate. For all of these reasons, it is not uncommon
in large-scale cluster Internet services for system management software
to periodically reboot sets of machines in order to reset them and thus
obtain the advantages listed above.
Thus, next time you reboot, you are not just enacting some ugly hack.
Rather, you are using a time-tested approach to improving the behavior
of a computer system. Well done!
It should be noted that not all operating-system actions track CPU performance. As Ousterhout observed, many OS operations are memory
intensive, and memory bandwidth has not improved as dramatically as
processor speed over time [O90]. Thus, depending on your workload,
buying the latest and greatest processor may not speed up your OS as
much as you might hope.
MYNTRANEW300
MYNTRANEW300COPIED
🙈
your hair 😭
What about this?
yesssssss 😭
is this cute?