I FIGURED OUT HOW TO TELL WHEN YOUR PROVIDER IS OVERSUBSCRIBING AND I WANTED TO SHARE THIS BECAUSE I SPENT THREE MONTHS TRACKING THIS AFTER I NOTICED MY VPS FROM CONTABO WAS GETTING SLOWER AND SLOWER EVERY WEEK AND I THOUGHT MAYBE IT WAS JUST ME BUT THEN I STARTED RUNNING IOPING EVERY HOUR AND FIO EVERY SIX HOURS AND I KEPT IT ALL IN A SPREADSHEET AND MY CAT SAT ON THE KEYBOARD ONCE AND DELETED TWO WEEKS OF DATA AND I HAD TO START OVER AND THE WEATHER WAS TERRIBLE THAT DAY STORMING LIKE CRAZY AND I COULDNT EVEN GO OUTSIDE TO CLEAR MY HEAD SO I JUST STARTED OVER AND EVENTUALLY I NOTICED THE PATTERN WHERE DISK LATENCY SPIKED EVERY TUESDAY AND THURSDAY AND I REALIZED THOSE WERE THE DAYS THEY PROBABLY PROVISIONED NEW CUSTOMERS ONTO THE SAME NODE AND I ALSO NOTICED NETWORK DEGRADATION DURING EVENING HOURS IN EUROPE WHICH MADE SENSE BECAUSE EVERYONE WAS WATCHING VIDEO OR SOMETHING AND I COMPARED WITH A FRIEND WHO HAD A DEDICATED SERVER AT THE SAME DATACENTER AND HIS NUMBERS WERE ROCK SOLID SO IT WAS DEFINITELY OVERSUBSCRIPTION NOT NETWORK ISSUES AND I MADE THIS LITTLE GUIDE AND HOPEFULLY IT HELPS PEOPLE
¡this is very useful, thank you! I was suspecting same thing with my old provider but never had proof. Jajaja I spent whole weekend doing ioping and my roommate thought I was crazy. ¿you think network congestion test with mtr during peak hours is also good indicator? I tried this and saw packet loss only at certain times, is very strange. Maybe I should repost shorter version of my findings...
When I was starting out u could tell a host was oversubscribed when yer 56k connection got busy signals at 6pm :-) now u kids got all these fancy tools I still say nothing beats running yer own bare metal, r u really saving money if u spend hours benchmarking someone elses oversold box?? Back in my day we called this "modem pool exhaustion" and we knew the provider was lying when they said "unlimited"
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