<div dir="ltr">Because swapping to SD card is slow, swapping to zram is fast, and zram only takes about 1/2 of the RAM that it provides.<div>It's basically RAM compression.</div><div>It works and makes a positive difference, even without exceedingly slow storage.</div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Oct 12, 2018 at 5:16 PM Fred Gleason <<a href="mailto:fredg@paravelsystems.com">fredg@paravelsystems.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">On Oct 7, 2018, at 07:58, Robert Moskowitz <<a href="mailto:rgm@htt-consult.com" target="_blank">rgm@htt-consult.com</a>> wrote:<div><br><div><blockquote type="cite"><div><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">I have very recently learned about zram-swap.  Fedora-29-arm is using it.  It supposedly makes a considerable difference even over HD swap.</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">Since many (potential) users of Centos-arm do not have a ready HD, perhaps we can switch the image from a physical partition to zram? Or at least instructions to change to this on the wiki.</span></div></blockquote></div><br></div><div>Not to be utterly naive, but why is swap required on such systems at all? To take core RAM and repurpose it as swap would seem to vitiate the entire point of having a virtual memory subsystem in the first place.</div><div><br></div><div>Cheers!</div><div><br></div><div><br></div><div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">|----------------------------------------------------------------------|</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">| Frederick F. Gleason, Jr. |              Chief Developer             |</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">|                           |              Paravel Systems             |</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">|----------------------------------------------------------------------|</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">| Perfection is reached, not when there is no longer anything to add,  |</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">| but when there is no longer anything to take away.                   |</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">|                                    -- Antoine de Saint-Exupery       |</span></div><div style="margin:0px;font-size:11px;line-height:normal;font-family:Menlo"><span style="font-variant-ligatures:no-common-ligatures">|----------------------------------------------------------------------|</span></div></div></div>_______________________________________________<br>
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