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Jul
31
comment How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
@Hanzaplastique: I'll try to track it down. The 4MB boundaries are in active use on most cards and I remember finding the recommendation for this in the SD Card specifications buried somewhere on their site.
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22
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May
14
comment How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
@MattH: I have several class 10 8GiB microSDs and they all have 8kiB or 16kiB page sizes. Using a 1kiB block size could cause much more churn of the drive than necessary. The key to flash is always writing in blocks equal to or larger than the page size. Ideally, most modern disks can write multiple pages at once in a stream, so you really want that number as your minimum write size if optimizing additionally for speed.
May
13
answered How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
Mar
23
comment How can I sum values within a specific time and date range?
Is there any way to make this work when the table may contain empty rows? I get a #VALUE error if I add an empty row to my table.
Mar
23
comment Conditional Formatting Alternating Rows in Excel
Asking that question led me to the correct google search to come up with this: =MOD(ROW(),2)*(COUNTBLANK($A15:$F15)<>COLUMNS($A15:$F15))
Mar
23
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Mar
23
comment Conditional Formatting Alternating Rows in Excel
@barryhoudini Is there a cleaner method than the following for detecting any cell in my row is non-empty? =MOD(ROW(),2)*OR($A15<>"",$B15<>"",$C15<>"",$D15<>"",$E15<>"",$F15<>"")
Jan
17
comment Alternative to Preview for scanning on Mac OS X
As of 10.8 (at least), Image Capture supports multi-page documents and has supported them for a while maybe as far back as 10.5. I scan from a multi-function canon over my wireless network regularly. If I use the feeder, it scans all pages. As long as you check "Combine into a single document" and don't change the file name, you can do multiple scans and it will just keep adding pages to the same PDF.
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28
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Jan
23
comment How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
@Randolph: It allows you to set a block size of 1, 2, or 4kB. I ended up just trying them all and 1kB is significantly faster than the others.
Jan
23
revised How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
cluster size is 64kB and not 18kB (my hex dump offset was off by 1 byte)
Jan
22
asked How can I format an SD card with a more robust Linux-usable filesystem with a specific cluster size for better write performace?
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8
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