On Mon, 30 Dec 2002 13:44:09 -0500 Tim Wunder <[EMAIL PROTECTED]> wrote:
> But, what could possibly be *gained*, performance-wise, by turning swap off? > If swap isn't needed, it won't be used... Linux kernel code and data are not swappable and are never moved to swap. User code never needs to be written to swap space because it already exists on disk and can be read in from there if it is required again. User data is the only data that is written to swap space. Once user data is in swap, it is read back in when it is needed. If your application is dependent on swap performance, you need more RAM. This is where you gain performance. Swap should be viewed as a lightweight background optimization to make unused pages available for other work, rather than as a cure for an underprovisioned machine (Which is what swap has become). The point was and still is that memory is dirt cheap (For the price of a crappy usb webcam, you can purchase 256MB of RAM). Best Peck _______________________________________________ Linux-users mailing list [EMAIL PROTECTED] Unsubscribe/Suspend/Etc -> http://www.linux-sxs.org/mailman/listinfo/linux-users
