reg : adding grub entry with hugepages.
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Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepages enabled permanently can u tell me how can i add?
and wher can i add?
Signature · 2 lines
Thanks & Regards, ANAND
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Hi,
Here is an example to enable both 1G and 2M in kernel parameters.
default_hugepagesz=1G hugepagesz=1G hugepages=8 hugepagesz=2M hugepages=512
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Anand S Angadi
Sent: Monday, September 1, 2014 4:44 PM
To: [email protected]
Subject: [dpdk-dev] reg : adding grub entry with hugepages.
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepages enabled permanently can u tell me how can i add? and wher can i add?
--
Thanks & Regards,
ANAND
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Quoted 14 lines · Jerry
Hi,
Here is an example to enable both 1G and 2M in kernel parameters.
default_hugepagesz=1G hugepagesz=1G hugepages=8 hugepagesz=2M hugepages=512
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Anand S Angadi
Sent: Monday, September 1, 2014 4:44 PM
To: [email protected]
Subject: [dpdk-dev] reg : adding grub entry with hugepages.
Quoted 11 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepages enabled permanently can u tell me how can i add? and wher can i add?--
Thanks & Regards,
ANAND
Hi Zhang,
Thank you for your reply, now I am using same thing but i want it permanently to add. means after every time reboot i have write again it, please help me.
Signature · 2 lines
Thanks & Regards, ANAND
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Quoted 3 lines · Anand S Angadi
Quoted 3 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepages enabled permanently can u tell me how can i add? and wher can i add?
Try /etc/default/grub .
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Quoted 7 lines
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Matthew Hall
Sent: Monday, September 01, 2014 10:06 AM
To: Anand S Angadi
Cc: [email protected]
Subject: Re: [dpdk-dev] reg : adding grub entry with hugepages.
Quoted 7 lines
Quoted 2 lines · Anand S Angadi
Quoted 2 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepagesenabled permanently can u tell me how can i add?
Quoted 1 line
Quoted 1 line
and wher can i add?
Try
/etc/default/grub.
... and use grub2-mkconfig to regenerate the grub configuration afterwards.
Quoted 6 lines · Matthew Hall
Quoted 3 lines · Anand S Angadi
Quoted 3 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepages enabled permanently can u tell me how can i add? and wher can i add?Try
/etc/default/grub.
Hi Matthew,
I added "default_hugepagesz=2M hugepagesz=2M hugepages=1024" and did reboot.
after i did cat /proc/meminfo but i am not getting Hugepages_total 1024. the output is as mentioned bellow.
$cat /proc/meminfo
:
:
:
HardwareCorrupted: 0 kB AnonHugePages: 43008 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 12288 kB DirectMap2M: 4024320 kB
$
Signature · 2 lines
Thanks & Regards, ANAND
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Quoted 34 lines
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Anand S Angadi
Sent: Monday, September 1, 2014 5:27 PM
To: Matthew Hall
Cc: [email protected]
Subject: Re: [dpdk-dev] reg : adding grub entry with hugepages.Quoted 3 lines · Matthew Hall
Quoted 2 lines · Anand S Angadi
Quoted 2 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepagesenabled permanently can u tell me how can i add?
Quoted 3 lines
Quoted 1 line
Quoted 1 line
and wher can i add?
Try
/etc/default/grub.Hi Matthew,
I added "default_hugepagesz=2M hugepagesz=2M hugepages=1024" and did reboot.
after i did cat/proc/meminfobut i am not gettingHugepages_total1024. the output is as mentioned bellow.$cat
/proc/meminfo
:
:
:HardwareCorrupted: 0 kB AnonHugePages: 43008 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 12288 kB DirectMap2M: 4024320 kB
Quoted 2 lines
$
Make sure current kernel parameters is correct by below command. $cat /proc/cmdline
Quoted 12 lines
Quoted 2 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepagesenabled permanently can u tell me how can i add?
Quoted 9 lines
and wher can i add?
--
Thanks & Regards,
ANAND
Quoted 3 lines
Hi Zhang,
Thank you for your reply, now I am using same thing but i want it permanently to add. means after every time reboot i have write again it, please help me.
You may add this parameter in /etc/default/grub
GRUB_CMDLINE_LINUX="default_hugepagesz=1G hugepagesz=1G hugepages=8 hugepagesz=2M hugepages=512"
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Quoted 21 lines
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Zhang, Jerry
Sent: Monday, September 01, 2014 10:37 AM
To: Anand S Angadi
Cc: [email protected]
Subject: Re: [dpdk-dev] reg : adding grub entry with hugepages.Quoted 12 lines
Quoted 2 lines
Hello everyone,
I am using fedora 16, i want to Add additional Grub entry with hugepagesenabled permanently can u tell me how can i add?
Quoted 9 lines
and wher can i add?
--
Thanks & Regards,
ANANDQuoted 2 lines
Hi Zhang,
Thank you for your reply, now I am using same thing but i want it permanently
Quoted 7 lines
to
Quoted 1 line
add. means after every time reboot i have write again it, please help me.
You may add this parameter in
/etc/default/grubGRUB_CMDLINE_LINUX="default_hugepagesz=1G hugepagesz=1G hugepages=8 hugepagesz=2M hugepages=512"
Again, please note that after changing the grub defaults you still need to regenerate the grub configuration file, which is generally in /boot (on fedora 20 it's in /boot/grub2/grub.cfg). This is the file actually read at boot time by grub.
/Bruce
Quoted 6 lines
-----Original Message-----
From: dev [mailto:[email protected]] On Behalf Of Zhang, Jerry
Sent: Monday, September 01, 2014 9:52 AM
To: Anand S Angadi; [email protected]
Subject: Re: [dpdk-dev] reg : adding grub entry with hugepages.
Quoted 6 lines
Hi,
Here is an example to enable both 1G and 2M in kernel parameters.
default_hugepagesz=1G hugepagesz=1G hugepages=8 hugepagesz=2M hugepages=512
Just FYI: the default_hugepagesz part is not necessary, so I'd generally leave it out and let the system default be 2MB as normal. You can always get a hugetlbfs mount of a particular hugepage size by passing the pagesize= parameter when doing the mount.
/Bruce