<div class="bbWrapper">I recently made hardware changes to my system by adding a new 2.5 G network card. I started conducting file transfer speed tests and noticed that when I transfer large files through FTP (using FileZilla) or via rsync (using Terminal), the speed is capped at around 35 MBps. However, a couple of days ago, I noticed that when I transfer the same file using SMB ( Finder), the transfer speed is over 200 MBps. What do you think could be the cause?<br />
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Hardware: <br />
<div class="bbTable">
<table style='width: 100%'><tr><td>CPU</td><td>AMD FX-8320E Eight-Core Processor</td></tr><tr><td>Motherboard</td><td>Gigabyte GA-970A-DS3P</td></tr><tr><td>RAM </td><td>24 GB</td></tr><tr><td>Network</td><td><b>Intel I225, Chips 100/1000M/2500M, RJ45, PCIe, PCI Express (Changed Recently)</b></td></tr></table>
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iPerf shows the following when the server is TrueNas:<br />
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<script class="js-extraPhrases" type="application/json">
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
</script>
<div class="bbImageWrapper js-lbImage" title="STN.png"
data-src="https://www.truenas.com/community/attachments/stn-png.71284/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1">
<img src="https://www.truenas.com/community/attachments/stn-png.71284/"
data-url=""
class="bbImage"
data-zoom-target="1"
style=""
alt="STN.png"
title="STN.png"
width="1078" height="246" loading="lazy" />
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<div class="bbImageWrapper js-lbImage" title="CIMAC2.png"
data-src="https://www.truenas.com/community/attachments/cimac2-png.71286/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1">
<img src="https://www.truenas.com/community/attachments/cimac2-png.71286/"
data-url=""
class="bbImage"
data-zoom-target="1"
style=""
alt="CIMAC2.png"
title="CIMAC2.png"
width="1078" height="180" loading="lazy" />
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When TrueNas is the client shows this:<br />
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<div class="bbImageWrapper js-lbImage" title="TNC.png"
data-src="https://www.truenas.com/community/attachments/tnc-png.71287/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1">
<img src="https://www.truenas.com/community/attachments/tnc-png.71287/"
data-url=""
class="bbImage"
data-zoom-target="1"
style=""
alt="TNC.png"
title="TNC.png"
width="1078" height="198" loading="lazy" />
</div>
<div class="bbImageWrapper js-lbImage" title="IMACS.png"
data-src="https://www.truenas.com/community/attachments/imacs-png.71288/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1">
<img src="https://www.truenas.com/community/attachments/imacs-png.71288/"
data-url=""
class="bbImage"
data-zoom-target="1"
style=""
alt="IMACS.png"
title="IMACS.png"
width="1078" height="198" loading="lazy" />
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<b>Transferring Files:</b><br />
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Evidence FTP. <br />
<a href="https://www.truenas.com/community/attachments/ftp-png.71283/"
target="_blank" class="js-lbImage"><img src="https://www.truenas.com/community/data/attachments/70/70854-318738fc8a36a51e2147e567a0f45491.jpg"
class="bbImage "
style=""
alt="FTP.png"
title="FTP.png"
width="1088" height="132" loading="lazy" /></a>
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When the process begins, the transfer occurs at max speed, but it downs over time to the point that it stabilizes at around 30 - 35 MBps. <br />
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Evidence Rsync: <br />
<div class="bbImageWrapper js-lbImage" title="RsyncTC.png"
data-src="https://www.truenas.com/community/attachments/rsynctc-png.71289/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1">
<img src="https://www.truenas.com/community/attachments/rsynctc-png.71289/"
data-url=""
class="bbImage"
data-zoom-target="1"
style=""
alt="RsyncTC.png"
title="RsyncTC.png"
width="996" height="206" loading="lazy" />
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The same story with rsync.<br />
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<b>But</b> when I transfer <b>THE SAME FILE</b> using <b>SMB</b>, it does in less than 25 sec. <br />
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Note: I've done many tests with different file types like videos (.mov,mp4) and iso files. Actually, the attached evidence is related to an iso file.<br />
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Thanks in advance.</div>
