Mysqld dying together with safe_mysql
hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Qmail Installation and Configuration
Hi Guys ! I'm looking for install Qmail, but i don't understand How to ... Could someone help me pleaze ? Florian -Message d'origine- De : jens-ingo brodesser [mailto:[EMAIL PROTECTED]] Envoyé : mardi 3 juillet 2001 12:50 À : [EMAIL PROTECTED] Objet : Mysqld dying together with safe_mysql hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Mysqld dying together with safe_mysql
On Tue, Jul 03, 2001 at 12:49:32PM +0200, jens-ingo brodesser wrote: hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? What does your MySQL error log say? nothing, it remains empty ... all /var/log/mysql.err logs are empty -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Qmail Installation and Configuration
The best qmail reference I ever found was http://www.lifewithqmail.com. To install qmail on debian you should apt-get install qmail-src. Then run build-qmail (or something close to that, apt will tell you what to do). The build-qmail script adds the qmail users and groups and also builds qmail. I haven't done this in a while so please correct me if I am wrong... Greg On Tue, 3 Jul 2001, Florian DUVAL - HostMaster wrote: Hi Guys ! I'm looking for install Qmail, but i don't understand How to ... Could someone help me pleaze ? Florian -Message d'origine- De : jens-ingo brodesser [mailto:[EMAIL PROTECTED]] Envoyé : mardi 3 juillet 2001 12:50 À : [EMAIL PROTECTED] Objet : Mysqld dying together with safe_mysql hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Greg Rowe Paranoia is a virtue. http://www.therowes.net -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: users bypassing shaper limitation
Jeff S Wheeler proclaimed: cards around. If I do not, they will grumble and/or disable the ethernet ports that unknown MAC addresses appear on. In some areas (e.g. student labs) they do that automatically so kids can't just bring their laptop in and hop on napster at 100Mbit. Easy. Disconnect any machine, set your MAC/IP-addresses to its addresses, connect your laptop. Don't know its addresses? Just sniff around on the port for a while, but make sure you keep quiet. Holger -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
RE: users bypassing shaper limitation
Your method would allow someone to attach their computer to the network, certainly, but it would not allow them to bypass the traffic shaping limitations configured for that host. That is the goal of the original poster, as I understand. - jsw -Original Message- From: news [mailto:[EMAIL PROTECTED]]On Behalf Of Holger Lubitz Sent: Tuesday, July 03, 2001 9:08 AM To: [EMAIL PROTECTED] Subject: Re: users bypassing shaper limitation Jeff S Wheeler proclaimed: cards around. If I do not, they will grumble and/or disable the ethernet ports that unknown MAC addresses appear on. In some areas (e.g. student labs) they do that automatically so kids can't just bring their laptop in and hop on napster at 100Mbit. Easy. Disconnect any machine, set your MAC/IP-addresses to its addresses, connect your laptop. Don't know its addresses? Just sniff around on the port for a while, but make sure you keep quiet. Holger -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: disk partition schemes
On Mon, Jul 02, 2001 at 03:12:31PM +0200, Russell Coker wrote: If your root file system is at the start then it is unlikely to be large enough to break any boot loaders. Recent boot loaders are very capable... fill it up to more than 512MB (was it that number?) and then compile a new kernel years later and it will be after that magical border ans thus unaccessable. * /var, as used for logs, can fill up completely if a program get mad and prevent other programs than just syslogd from working if it's on / chgrp log /var/log/*log Set quota for log group. Problem solved? I would assume that disc quota increase the load on a server. As we're talking about a heavily loaded server wich much disc IO (else this partitioning is not necessary) this would slowdown it, or not? From what I've seen LVM is much better at breaking data into pieces than it is at putting them back together... I wanted to take over maintenance of the LVM packages for Debian but couldn't because I couldn't get it working with a recent kernel! I use 2.4.6-pre7 and use LVM,reiserfs and ext3 without problems. (maybe my kernel is just too recent...) bye, -christian- -- Real men don't take backups. They put their source on a public FTP-server and let the world mirror it. -- Linus Torvalds -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
IP Accounting and 2.4
OK. New job, new problems. Whereas I used to be able to ignore systems administration and networking, it's now my focus. Our ISP wants to be able to record IP traffic and bandwidth useage for each of its users, a common need amongst ISP's. In my initial search, I found ipac[1] for Debian potato. It worked with the 2.2 kernels, but nothing greater. A little digging brought me to the ipac-ng[2] site at Sourceforge[3]. Three patches, a new debian/rules file, multiple debhelper support files later, a manual include directive to gcc in agents/iptables/Makefile.in, and I had a working ipac-ng 1.04 package[4] that used iptables.* The powers that be, those that provide my paycheck, didn't like the ipac-ng graphics and wanted something prettier. With ipac-ng came a few contrib scripts, one for displaying the data via mrtg[5]. The process is painfully slow and resource intensive, but workable.** sarcasm Making it scriptable is going to be fun. /sarcasm I'm interested in trying rrdtool[6] with the mrtg data, but we're not there quite yet (another step to set up the web cgi). The IP's we need to track number in the hundreds, and we're expecting to have to scale this whole operation many times over. With ipac-ng inserting two rules into iptables for each ip tracked, the tables are starting to look REAL ugly. I fear that performance on the router is going suffer (as if it isn't already). Now, I searched the archives here and took someone's [7] suggestion to look at fiprad[8]. However, it's kernel module and patch are for the 2.2.14 kernel alone. The last update to the website looks to be in March of 2000. I was intrigued because of the fiprad daemon that inserted accounting for ipblocks (VERY nice way to configure by the way), directly into MySQL (not my favorite, but not a problem). I was also intrigued by the efficient logic for logging the packets (no nest of ipchains rules). I'm interested in finding out what others have done for IP accounting for a large number of customers. (Rate limiting and traffic shaping aside -- a topic for another day.) If anyone else is interested in fiprad for the 2.4 kernel, let me know. I'll send off a copy of this to the fiprad developers and see if they've worked on it since May 2000. Footnote * 1.05, the latest of the ipac-ng thread, had problems parsing the config file. In the interest of time alone, I dropped down one version. References -- 1. http://packages.debian.org/stable/main/ipac.html 2. http://ipac-ng.sourceforge.net/ 3. http://sf.net 4. *.dsc available upon request 5. http://packages.debian.org/stable/main/mrtg.html 6. http://packages.debian.org/stable/main/rrdtool.html 7. http://lists.debian.org/debian-isp-0101/msg00166.html 8. http://www.umplug.org/fipra/ -- Chad Walstrom [EMAIL PROTECTED] | a.k.a. ^chewie http://www.wookimus.net/| s.k.a. gunnarr Key fingerprint = B4AB D627 9CBD 687E 7A31 1950 0CC7 0B18 206C 5AFD PGP signature
Re: disk partition schemes
On Wed, Jul 04, 2001 at 12:26:46AM +0200, Christian Hammers wrote: I use 2.4.6-pre7 and use LVM,reiserfs and ext3 without problems. (maybe my kernel is just too recent...) ext3 has just recently been ported over to kernel 2.4, and you have no problems you say? (when I say recent, I mean the task began about 4 weeks ago). From what I've heard It does run. but there are still many problems. -- Nick Jennings -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ATA Speed
ATA100 != 100Mhz pci bus. All that's doing is reporting the pci bus (to which the ide controller is attached). Nothing more, nothing less. All cards/controllers attached to your pci bus will run at that same speed. HTH. On Tuesday 03 July 2001 03:49 pm, R K wrote: Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Thanks in advance -- To me vi is Zen. To use vi is to practice zen. Every command is a koan. Profound to the user, unintelligible to the uninitiated. You discover truth everytime you use it. [EMAIL PROTECTED] [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ATA Speed
On Tue, 3 Jul 2001, R K wrote: Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Did you note that it said 33MHz and not 33 MB/s ?? And did you note that it says PIO mode, while ata100 is a DMA mode ?? Entering that message into Google got me the following url: http://list.cobalt.com/pipermail/cobalt-users/2001-May/042555.html which quotes another message (I am too lazy to find the original) which clearly explains what this message means. -- Tot ziens, Bart-Jan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Mysqld dying together with safe_mysql
hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo
Re: Mysqld dying together with safe_mysql
On Tue, Jul 03, 2001 at 12:49:32PM +0200, jens-ingo brodesser wrote: hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? What does your MySQL error log say? -- Jeremy D. ZawodnyWeb Geek, Perl Hacker, Yahoo! http://www.zawodny.com/jzawodn/ [EMAIL PROTECTED]
Qmail Installation and Configuration
Hi Guys ! I'm looking for install Qmail, but i don't understand How to ... Could someone help me pleaze ? Florian -Message d'origine- De : jens-ingo brodesser [mailto:[EMAIL PROTECTED] Envoyé : mardi 3 juillet 2001 12:50 À : debian-isp@lists.debian.org Objet : Mysqld dying together with safe_mysql hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Mysqld dying together with safe_mysql
On Tue, Jul 03, 2001 at 12:49:32PM +0200, jens-ingo brodesser wrote: hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? What does your MySQL error log say? nothing, it remains empty ... all /var/log/mysql.err logs are empty
Re: Qmail Installation and Configuration
The best qmail reference I ever found was http://www.lifewithqmail.com. To install qmail on debian you should apt-get install qmail-src. Then run build-qmail (or something close to that, apt will tell you what to do). The build-qmail script adds the qmail users and groups and also builds qmail. I haven't done this in a while so please correct me if I am wrong... Greg On Tue, 3 Jul 2001, Florian DUVAL - HostMaster wrote: Hi Guys ! I'm looking for install Qmail, but i don't understand How to ... Could someone help me pleaze ? Florian -Message d'origine- De : jens-ingo brodesser [mailto:[EMAIL PROTECTED] Envoyé : mardi 3 juillet 2001 12:50 À : debian-isp@lists.debian.org Objet : Mysqld dying together with safe_mysql hello, i'm experiencing a strange problem with mysqld under debian potato. it dies almost allways together with the safe_mysql script which is intended to restart a dead mysql server. has anybody an explanation for this strange behavior of the safe_mysql script ? thank you, -- jens-ingo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Greg Rowe Paranoia is a virtue. http://www.therowes.net
Re: users bypassing shaper limitation
Jeff S Wheeler proclaimed: cards around. If I do not, they will grumble and/or disable the ethernet ports that unknown MAC addresses appear on. In some areas (e.g. student labs) they do that automatically so kids can't just bring their laptop in and hop on napster at 100Mbit. Easy. Disconnect any machine, set your MAC/IP-addresses to its addresses, connect your laptop. Don't know its addresses? Just sniff around on the port for a while, but make sure you keep quiet. Holger
RE: users bypassing shaper limitation
Your method would allow someone to attach their computer to the network, certainly, but it would not allow them to bypass the traffic shaping limitations configured for that host. That is the goal of the original poster, as I understand. - jsw -Original Message- From: news [mailto:[EMAIL PROTECTED] Behalf Of Holger Lubitz Sent: Tuesday, July 03, 2001 9:08 AM To: debian-isp@lists.debian.org Subject: Re: users bypassing shaper limitation Jeff S Wheeler proclaimed: cards around. If I do not, they will grumble and/or disable the ethernet ports that unknown MAC addresses appear on. In some areas (e.g. student labs) they do that automatically so kids can't just bring their laptop in and hop on napster at 100Mbit. Easy. Disconnect any machine, set your MAC/IP-addresses to its addresses, connect your laptop. Don't know its addresses? Just sniff around on the port for a while, but make sure you keep quiet. Holger -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: disk partition schemes
On Mon, Jul 02, 2001 at 03:12:31PM +0200, Russell Coker wrote: If your root file system is at the start then it is unlikely to be large enough to break any boot loaders. Recent boot loaders are very capable... fill it up to more than 512MB (was it that number?) and then compile a new kernel years later and it will be after that magical border ans thus unaccessable. * /var, as used for logs, can fill up completely if a program get mad and prevent other programs than just syslogd from working if it's on / chgrp log /var/log/*log Set quota for log group. Problem solved? I would assume that disc quota increase the load on a server. As we're talking about a heavily loaded server wich much disc IO (else this partitioning is not necessary) this would slowdown it, or not? From what I've seen LVM is much better at breaking data into pieces than it is at putting them back together... I wanted to take over maintenance of the LVM packages for Debian but couldn't because I couldn't get it working with a recent kernel! I use 2.4.6-pre7 and use LVM,reiserfs and ext3 without problems. (maybe my kernel is just too recent...) bye, -christian- -- Real men don't take backups. They put their source on a public FTP-server and let the world mirror it. -- Linus Torvalds
IP Accounting and 2.4
OK. New job, new problems. Whereas I used to be able to ignore systems administration and networking, it's now my focus. Our ISP wants to be able to record IP traffic and bandwidth useage for each of its users, a common need amongst ISP's. In my initial search, I found ipac[1] for Debian potato. It worked with the 2.2 kernels, but nothing greater. A little digging brought me to the ipac-ng[2] site at Sourceforge[3]. Three patches, a new debian/rules file, multiple debhelper support files later, a manual include directive to gcc in agents/iptables/Makefile.in, and I had a working ipac-ng 1.04 package[4] that used iptables.* The powers that be, those that provide my paycheck, didn't like the ipac-ng graphics and wanted something prettier. With ipac-ng came a few contrib scripts, one for displaying the data via mrtg[5]. The process is painfully slow and resource intensive, but workable.** sarcasm Making it scriptable is going to be fun. /sarcasm I'm interested in trying rrdtool[6] with the mrtg data, but we're not there quite yet (another step to set up the web cgi). The IP's we need to track number in the hundreds, and we're expecting to have to scale this whole operation many times over. With ipac-ng inserting two rules into iptables for each ip tracked, the tables are starting to look REAL ugly. I fear that performance on the router is going suffer (as if it isn't already). Now, I searched the archives here and took someone's [7] suggestion to look at fiprad[8]. However, it's kernel module and patch are for the 2.2.14 kernel alone. The last update to the website looks to be in March of 2000. I was intrigued because of the fiprad daemon that inserted accounting for ipblocks (VERY nice way to configure by the way), directly into MySQL (not my favorite, but not a problem). I was also intrigued by the efficient logic for logging the packets (no nest of ipchains rules). I'm interested in finding out what others have done for IP accounting for a large number of customers. (Rate limiting and traffic shaping aside -- a topic for another day.) If anyone else is interested in fiprad for the 2.4 kernel, let me know. I'll send off a copy of this to the fiprad developers and see if they've worked on it since May 2000. Footnote * 1.05, the latest of the ipac-ng thread, had problems parsing the config file. In the interest of time alone, I dropped down one version. References -- 1. http://packages.debian.org/stable/main/ipac.html 2. http://ipac-ng.sourceforge.net/ 3. http://sf.net 4. *.dsc available upon request 5. http://packages.debian.org/stable/main/mrtg.html 6. http://packages.debian.org/stable/main/rrdtool.html 7. http://lists.debian.org/debian-isp-0101/msg00166.html 8. http://www.umplug.org/fipra/ -- Chad Walstrom [EMAIL PROTECTED] | a.k.a. ^chewie http://www.wookimus.net/| s.k.a. gunnarr Key fingerprint = B4AB D627 9CBD 687E 7A31 1950 0CC7 0B18 206C 5AFD pgpNyH5dUlcbA.pgp Description: PGP signature
ATA Speed
Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Thanks in advance
Re: disk partition schemes
On Wed, Jul 04, 2001 at 12:26:46AM +0200, Christian Hammers wrote: I use 2.4.6-pre7 and use LVM,reiserfs and ext3 without problems. (maybe my kernel is just too recent...) ext3 has just recently been ported over to kernel 2.4, and you have no problems you say? (when I say recent, I mean the task began about 4 weeks ago). From what I've heard It does run. but there are still many problems. -- Nick Jennings
Re: ATA Speed
ATA100 != 100Mhz pci bus. All that's doing is reporting the pci bus (to which the ide controller is attached). Nothing more, nothing less. All cards/controllers attached to your pci bus will run at that same speed. HTH. On Tuesday 03 July 2001 03:49 pm, R K wrote: Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Thanks in advance -- To me vi is Zen. To use vi is to practice zen. Every command is a koan. Profound to the user, unintelligible to the uninitiated. You discover truth everytime you use it. [EMAIL PROTECTED] [EMAIL PROTECTED]
Re: ATA Speed
On Tue, 3 Jul 2001, R K wrote: Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Did you note that it said 33MHz and not 33 MB/s ?? And did you note that it says PIO mode, while ata100 is a DMA mode ?? Entering that message into Google got me the following url: http://list.cobalt.com/pipermail/cobalt-users/2001-May/042555.html which quotes another message (I am too lazy to find the original) which clearly explains what this message means. -- Tot ziens, Bart-Jan
RE: ATA Speed
You can use the hdparm utility to discover what mode your disks are operating in. Notice the second-to-last line that begins with 'DMA modes:'. The '*' next to udma4 indicates it is operating in that mode, which equates to something commonly called ATA/66. :-) intrepid:/home/jsw# hdparm -i /dev/hdc /dev/hdc: Model=Maxtor 96147U8, FwRev=BAC51KJ0, SerialNo=N8046RBC Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=120060864 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4 Kernel Drive Geometry LogicalCHS=7473/255/63 - jsw -Original Message- From: R K [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 03, 2001 6:49 PM To: debian-isp@lists.debian.org Subject: ATA Speed Does the following mean that Linux is only using my ide bus at ata33 speeds? Or more accurately not using the full ata100 mode? ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx I've seen nothing from dmesg to indicate that it's doing otherwise. Does it configure it as 33 and then still use it to it's full potential or does it impose restrictions on itself? Even if this doesn't have anything to do with it, how would I verify that Linux is using the hardware to its full potential? Thanks in advance