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21 lines
493 B
Ruby
21 lines
493 B
Ruby
class MemInfo
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# Total memory in kb. On Mac OS uses "sysctl", elsewhere expects the system has /proc/meminfo.
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# Returns nil if it cannot be determined.
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def mem_total
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@mem_total ||=
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begin
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system = `uname`.strip
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if system == "Darwin"
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s = `sysctl -n hw.memsize`.strip
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s.to_i / 1.kilobyte
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else
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s = `grep MemTotal /proc/meminfo`
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/(\d+)/.match(s)[0].try(:to_i)
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end
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rescue
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nil
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end
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end
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end
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