Someone claims that the big O notation does not make sense at all, and they give the following example. An algorithm A that proc
1 answer:
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Yeah, Your steps ar correct. Let's analyse those steps more easily by the following steps:
Freeze panes is a feature in spreadsheet applications, such as Microsoft Excel, LibreOffice Calc, and Google Sheets. It "freezes" a row or column, so that it is always displayed, even as you navigate the spreadsheet.
❍ Freezing panes is especially useful if your spreadsheet has a header row, that you want to always be visible.
- Select the row below the row(s) you want to freeze. In our example, we want to freeze rows 1 and 2, so we'll select row.
- Click the View tab on the Ribbon.
- Select the Freeze Panes command, then choose Freeze
- Panes from the drop-down menu. ...
- The rows will be frozen in place, as indicated by the gray line.
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Answer:
CPU need 50% much faster
disk need 100% much faster
Explanation:
given data
workload spend time CPU = 60%
workload spend time I/O = 40%
achieve overall system speedup = 25%
to find out
How much faster does CPU need and How much faster does the disk need
solution
we apply here Amdahl’s law for the overall speed of a computer that is express as
S = .............................1
here f is fraction of work i.e 0.6 and S is overall speed i.e 100% + 25% = 125 % and k is speed up of component
so put all value in equation 1 we get
S =
1.25 =
solve we get
k = 1.5
so we can say CPU need 50% much faster
and
when f = 0.4 and S = 125 %
put the value in equation 1
S =
1.25 =
solve we get
k = 2
so here disk need 100% much faster