Add a TZ env setting for systemd. #1643
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…er. This prevents /etc/localtime from being stat'd on every logging call.
…atime on every log line
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Yeah, this looks safe. /etc/localtime appears to be part of systemd itself, and does not appear to be specific to just one distro. |
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Unless there is a TZ env set, things like gettimeofday will stat /etc/localtime on every call. We make A LOT of those calls. So this actually makes a noticeable cpu and io load reduction.