guess-submode Option to Search Past 1st Line about logview HOT 8 CLOSED

Please test if the performance is fine. You probably should do it with byte-compiled code, I guess difference can be substantial.

By default it looks at up to 10 lines now, or until it finds a suitable submode.

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I don't want to make it look too deep, I fear it will be too slow. But you can always customize new variable logview-guess-lines, 10 is not a hardcoded value.

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Unfortunately 10 lines isn't enough for my logs. We have a tid to name map at the beginning of our logs, so it could be 50 lines in.

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I had a log that started after 200 lines, so I set it to 250 and it recognized the style almost instantly. I think your code is more efficient than you think.

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In you case the first lines probably don't look anything like other log lines, so they are quickly skipped. But if I e.g. take a real log and make timestamps contain four digits after the point instead of three (so they are not matched, but still appear "promising"), it takes around 2-3 seconds with 10 lines here already.

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I just pushed a commit that makes Logview not consider all logview-guess-lines if several (by default 3) look "promising", but don't yield a successful match. Please test if this is still good enough for your logs.

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Still works great.

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Implemented in 0.14. I raised the default value for logview-guess-lines to 500, the default for logview-max-promising-lines remains at 3.

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