<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il gio 22 ago 2019, 17:47 Alessandro Luccaroni - Diennea <<a href="mailto:alessandro.luccaroni@diennea.com">alessandro.luccaroni@diennea.com</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hi list,<u></u><u></u></p>
<p class="MsoNormal">I’m happy to say that, since the last update of Herd (v0.11.9), we are using HerdDB collections in production system and we are very pleased with the performance and the memory usage of Herd.</p></div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Great news!</div><div dir="auto"><br></div><div dir="auto">Kudos</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="IT" link="#0563C1" vlink="#954F72"><div class="m_-1665732954488565969WordSection1"><p class="MsoNormal"><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">We first tried to switch with herd v0.11.0 but we encountered some problems on services with lots of data being continuisly load and unloaded (mainly related to filesystem usage)…you can see an history of the fixes needed in the release
histo fo the v0.11 branch, thanks Enrico and Diego!<u></u><u></u></p>
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I don’t have hard numbers on hand (I need to switch back to MapDB and perform some comparisons, I will update you tomorrow on that), but the performance are at least in line (I think they are better) with the added benefit of the controlled memory usage and
a BIG reduction in storage IOPS (Herd data storage versus the memory mapped files of MapDB).<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">PS: @Amit I’ve found this benchmark used in past by MapDB (<a href="https://github.com/jankotek/mapdb-benchmarks" target="_blank" rel="noreferrer">https://github.com/jankotek/mapdb-benchmarks</a>), maybe it would be good to integrate some bench regarding Collections before
starting advertise this feature of herd</p></div></div></blockquote></div></div><div dir="auto">Sure</div><div dir="auto">We can wait for 0.12.0 release</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Enrico</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="IT" link="#0563C1" vlink="#954F72"><div class="m_-1665732954488565969WordSection1"><p class="MsoNormal"><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b><span style="font-size:13.0pt;font-family:"Arial",sans-serif">Alessandro Luccaroni</span></b><span>
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Platform Manager @ Diennea - MagNews<br>
</span><span style="font-size:8.5pt;font-family:"Arial",sans-serif">Tel.: (+39) 0546 066100 Int. 924 - Mob.: (+39) 393 7273519</span><span><br>
</span><span style="font-size:8.5pt;font-family:"Arial",sans-serif">Viale G.Marconi 30/14 - 48018 Faenza (RA) - Italy</span><span><u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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