On 30.11.19 14:00, Jakob Laue wrote: > Do you have any hint why it takes that long to write 60000 rows into coll? > Maybe we do something wrong or have missed some smarter way to write our rows > into the coll matrix.
i don't know what you want to do, but if this is about "writing" (to file), you could also use zexy's [msgfile]. some numbers (on an i7-7700, running Debian/GNU linux, 64bit) - adding 700 entries: <1ms - adding 6000 entries: <11ms - adding 60000 entries: <50ms - writing 60000 entries to disk: <150ms - reading 60000 entries from disk: <130ms - output next entry: <1ms - seek to entry #20000 <3ms outputting the "next" entry is O(1). seeking to a position, resp, searching an entry is O(n). dfmasdr IOhannes PS: there's also a memory leak that ed.kelly discovered recently, that occurs when dealing with long lines. need to put a new version online....
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