Re: Performance degradation over time on VAX...

Jason Thorpe <[email protected]> Thu, 9 Jul 2026 09:51:56 -0700
Newsgroups	gmane.os.netbsd.ports.vax
Message-ID	<[email protected]>
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> On Jul 9, 2026, at 9:45=E2=80=AFAM, Ken Wellsch =
<[email protected]> wrote:
>=20
> 5.0.0   409.60 MB in  73.896 secs (5.54 MB/s)   offset -0.006272 sec
> 5.0.2   409.60 MB in  73.251 secs (5.59 MB/s)   offset -0.007861 sec
> 5.1.2   409.60 MB in  74.305 secs (5.51 MB/s)   offset 0.002074 sec
> 5.1.5   409.60 MB in  77.247 secs (5.30 MB/s)   offset -0.002412 sec
> 5.2.3   409.60 MB in  74.234 secs (5.52 MB/s)   offset 0.007559 sec
> 6.0.0   409.60 MB in 131.145 secs (3.12 MB/s)   offset -0.008218 sec


Seems like this should be the first thing to focus on.

-- thorpej


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<html aria-label=3D"message body"><head><meta http-equiv=3D"content-type" =
content=3D"text/html; charset=3Dutf-8"></head><body =
style=3D"overflow-wrap: break-word; -webkit-nbsp-mode: space; =
line-break: after-white-space;"><br><div><blockquote type=3D"cite"><div>On=
 Jul 9, 2026, at 9:45=E2=80=AFAM, Ken Wellsch =
&lt;[email protected]&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div><meta charset=3D"UTF-8"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">5.0.0 &nbsp;&nbsp;409.60 MB in &nbsp;73.896 =
secs (5.54 MB/s) &nbsp;&nbsp;offset -0.006272 sec</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration-line: none; =
text-decoration-thickness: auto; text-decoration-style: solid;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">5.0.2 &nbsp;&nbsp;409.60 MB in &nbsp;73.251 =
secs (5.59 MB/s) &nbsp;&nbsp;offset -0.007861 sec</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration-line: none; =
text-decoration-thickness: auto; text-decoration-style: solid;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">5.1.2 &nbsp;&nbsp;409.60 MB in &nbsp;74.305 =
secs (5.51 MB/s) &nbsp;&nbsp;offset 0.002074 sec</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration-line: none; =
text-decoration-thickness: auto; text-decoration-style: solid;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">5.1.5 &nbsp;&nbsp;409.60 MB in &nbsp;77.247 =
secs (5.30 MB/s) &nbsp;&nbsp;offset -0.002412 sec</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration-line: none; =
text-decoration-thickness: auto; text-decoration-style: solid;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">5.2.3 &nbsp;&nbsp;409.60 MB in &nbsp;74.234 =
secs (5.52 MB/s) &nbsp;&nbsp;offset 0.007559 sec</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration-line: none; =
text-decoration-thickness: auto; text-decoration-style: solid;"><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
12px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;">6.0.0 &nbsp;&nbsp;409.60 MB in 131.145 secs =
(3.12 MB/s) &nbsp;&nbsp;offset -0.008218 =
sec</span></div></blockquote></div><div><br></div><div>Seems like this =
should be the first thing to focus on.</div><br><div>
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant: normal; font-weight: normal; =
letter-spacing: normal; line-height: normal; orphans: 2; text-align: =
auto; text-indent: 0px; text-transform: none; white-space: normal; =
widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; =
-webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; "><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; ">-- thorpej</div></span>

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