Why has this site been going so slow? - page 2.

theymos

administrator

Activity: 5222

Merit: 13032

Quote from: 2112 on August 01, 2013, 09:35:40 AM

Or maybe the SSD disks storing the backends are getting worn out? Nearly random and multi-second delays on writes are common symptoms when using flash SSD drives to store databases with write-ahead-logging, which is the worst wear pattern for them: many writes and no reads.

Is there any way to test for this? I thought that SSDs were built to last several years, even under extremely heavy load.

2112

legendary

Activity: 2128

Merit: 1073

Do you guys think that it is easy to keep so many mirrors of the backend database: NSA, CIA, FBI and now SEC? Wink

I hope SEC will finally publish the most interesting deleted posts.

Or maybe the SSD disks storing the backends are getting worn out? Nearly random and multi-second delays on writes are common symptoms when using flash SSD drives to store databases with write-ahead-logging, which is the worst wear pattern for them: many writes and no reads.

I can take slow, but dread the disappearance of Bitcointalk. I remember loss of fuckedcompany.com post database and it was dreadfull loss to the information technology folklore.

whiskers75

hero member

Activity: 658

Merit: 502

Doesn't use these forums that often.

Random slowdowns, and slowdowns on DB actions (posting, search, et al) reported here. Sad

x^2

member

Activity: 73

Merit: 10

y=x^2 is a parabola

Quote from: jackjack on July 31, 2013, 02:52:04 PM

Quote from: Kouye on July 31, 2013, 02:45:15 PM

Quote from: Kouye on July 31, 2013, 06:17:07 AM

I'm no longer experiencing the slow-downs, seems to be fixed.
Thanks!

Actually, the random - though very frequent - stallings are back for me, guess it's linked to the peak hours, which is probably not a good sign. Undecided

Same

I still have slowdowns too.

jackjack

legendary

Activity: 1176

Merit: 1280

May Bitcoin be touched by his Noodly Appendage

Quote from: Kouye on July 31, 2013, 02:45:15 PM

Quote from: Kouye on July 31, 2013, 06:17:07 AM

I'm no longer experiencing the slow-downs, seems to be fixed.
Thanks!

Actually, the random - though very frequent - stallings are back for me, guess it's linked to the peak hours, which is probably not a good sign. Undecided

Same

Kouye

sr. member

Activity: 336

Merit: 250

Cuddling, censored, unicorn-shaped troll.

Quote from: Kouye on July 31, 2013, 06:17:07 AM

I'm no longer experiencing the slow-downs, seems to be fixed.
Thanks!

Actually, the random - though very frequent - stallings are back for me, guess it's linked to the peak hours, which is probably not a good sign. Undecided

John (John K.)

legendary

Activity: 1288

Merit: 1227

Away on an extended break

Quote from: dree12 on July 31, 2013, 10:43:21 AM

Quote from: John (John K.) on July 31, 2013, 10:26:03 AM

Feels better especially when I used a VPN, for no reason at all.

Maybe you used the same VPN the forum is hosted on?

Nope, I didn't. Maybe it's just that theymos fixed something up with the forums.

dree12

legendary

Activity: 1246

Merit: 1077

Quote from: John (John K.) on July 31, 2013, 10:26:03 AM

Feels better especially when I used a VPN, for no reason at all.

Maybe you used the same VPN the forum is hosted on?

John (John K.)

legendary

Activity: 1288

Merit: 1227

Away on an extended break

Feels better especially when I used a VPN, for no reason at all.

jackjack

legendary

Activity: 1176

Merit: 1280

May Bitcoin be touched by his Noodly Appendage

Same here, seems better

BadBear

legendary

Activity: 1652

Merit: 1128

Lot faster now, for me anyway.

btcton

legendary

Activity: 1302

Merit: 1007

It's around the 3-second loading mark for me at the moment.

Cablez

legendary

Activity: 1400

Merit: 1000

I owe my soul to the Bitcoin code...

Sorry, but still very slow. More slow when hitting back button for previous pages than on clicking new topics.

Kouye

sr. member

Activity: 336

Merit: 250

Cuddling, censored, unicorn-shaped troll.

I'm no longer experiencing the slow-downs, seems to be fixed.
Thanks!

Kouye

sr. member

Activity: 336

Merit: 250

Cuddling, censored, unicorn-shaped troll.

Quote from: theymos on July 29, 2013, 08:45:17 PM

I think that the site becomes slow every 90 seconds when the modSettings cache expires and every visitor then needs to do an expensive query. Does this seem to match your observations?

SMF handles modSettings really badly.

This is the only decent lead so far, and it looks promising, imo. Hopefully reports will pile up and this will be adressed.

Theymos, do you need any kind of reporting about the issue, can we help in any way?

minimalB

donator

Activity: 674

Merit: 523

I also noticed slow loading times something like a week ago. Few days it was fine, today it was slow again...

Other web sites load as usual, so it's not ISP.

Any ideas?

jackjack

legendary

Activity: 1176

Merit: 1280

May Bitcoin be touched by his Noodly Appendage

Welcome back to 2011

juhakall

sr. member

Activity: 658

Merit: 250

Quote from: Kouye on July 30, 2013, 04:57:33 PM

Quote from: juhakall on July 30, 2013, 04:50:23 PM

I too have been experiencing slow pageloads occasionally, while most of the time the loads only take less than a second. But I'm running into these slowdowns much more frequently than every 90 seconds.

I beg to differ. I'm getting the slow ones most of the times, the fast ones are pretty scarce.
And I'm not quite sure about the 90 seconds, yet, but it sure looks like it's a good lead.

Seems to have become much worse today. That was my experience for the past week or so, but it indeed seems to be even worse now. I just got some database errors as well, when I tried to edit my post.

nottm28

hero member

Activity: 574

Merit: 500

Quote from: Kouye on July 30, 2013, 04:57:33 PM

Quote from: juhakall on July 30, 2013, 04:50:23 PM

I too have been experiencing slow pageloads occasionally, while most of the time the loads only take less than a second. But I'm running into these slowdowns much more frequently than every 90 seconds.

I beg to differ. I'm getting the slow ones most of the times, the fast ones are pretty scarce.

Yep - it's getting worse now - slow responses on nearly every click...

Kouye

sr. member

Activity: 336

Merit: 250

Cuddling, censored, unicorn-shaped troll.

Quote from: juhakall on July 30, 2013, 04:50:23 PM

I too have been experiencing slow pageloads occasionally, while most of the time the loads only take less than a second. But I'm running into these slowdowns much more frequently than every 90 seconds.

I beg to differ. I'm getting the slow ones most of the times, the fast ones are pretty scarce.
And I'm not quite sure about the 90 seconds, yet, but it sure looks like it's a good lead.

Topic: Why has this site been going so slow? - page 2. (Read 4024 times)