5 ms·

I use both OS X and Linux daily, each on laptops and I would have agreed with you until recently. On 3.12-3.14 my resume times on have gone from slower than OS

I use both OS X and Linux daily, each on laptops and I would have agreed with you until recently. On 3.12-3.14 my resume times on have gone from slower than OS X to at least as fast, sometimes apparently faster, than the same OS X laptop. This is a pure btrfs, gnome, arch linux install. Old hardware (Thinkpad x220). Notably OS X still brings networking back up faster, but that is in the pipeline already for Linux.

Scramblejams 12y ago
"...that is in the pipeline already for Linux." Would you have a link to this?
- Adaptive 12y ago
  http://www.phoronix.com/scan.php?page=news_item&px=MTY1Mjc http://www.phoronix.com/scan.php?page=news_item&px=MTY1Mjc
  - josteink 12y ago
    I recommend moving past this blog-fluff and going directly to the Google+ announcement[1]. Quite impressive improvements. Can't wait until this goes live on normal distros. [1] https://plus.google.com/+TomGundersen/posts/eztZWbwmxM8 https://plus.google.com/+TomGundersen/posts/eztZWbwmxM8
zabcik 12y ago
Is btrfs stable with hibernate now? The last couple of times I used it, it crashed on me.
- Adaptive 12y ago
  I had a couple problems requiring a btrfsck, specifically related to google-chrome cache directories. Never had it since. I use btrfs snapshotting a lot (for convenient system rollback). I definitely am not running btrfs on a production machine, but I love it on this laptop. Wouldn't call it stable yet. edit to note that I don't hibernate, just sleep.
- zanny 12y ago
  I don't know you'd ever use hibernate anymore. I can cold boot to desktop faster than it takes to read 16GB of ram contents off a mechanical drive.
  - reedalex01 12y ago
    Speed isn't the only consideration. If you're using disk encryption, the only way to remove keys from RAM is to power off or hibernate. Preserving state between sessions with hibernation is much more convenient. Also, Linux only uses RAM * 2/5 as the size of the hibernation image [1]. You can make this even smaller by changing /sys/power/image_size. So with 16GB of RAM, it only has to write/read about 6.4GB. [1] https://www.kernel.org/doc/Documentation/power/interface.txt https://www.kernel.org/doc/Documentation/power/interface.txt
    - ciupicri 12y ago
      If you use hibernate won't the keys be stored on the swap partition?
      - reedalex01 12y ago
        You can use LVM to make the swap partition inside the encrypted container. If you don't want to use LVM, you can just use a swap file on an encrypted partition (but this isn't supported with btrfs).
nextos 12y ago
Slightly tangential, but I have almost the same setup (Arch + Thinkpad) and I've noticed slower shutdown times since ~3.12 due to systemd taking down oldroot. Are you experiencing the same thing?
maccard 12y ago
> Notable OS X still brings networking back up faster With the notable point that it doesn't work properly on a lot of hardware, in my experience (and in the experience of others I know). The major ISP in ireland provides the same box for most connections, and my mac just will not hold a connection to them when resuming from sleep. It appears to be an issue revolving around assignment of IP addresses, but I can't reproduce it, and it doesn't happen on my work network or uni network, but every UPC network I use with the same equipment (Technicolor TC7200U) has the issue.
- mschuster91 12y ago
  Gosh, TC7200 units just suck. I replaced mine with a Fritzbox and poof, no more random network stalls, suspend issues etc.
  - lawl 12y ago
    Offtopic: My cat opened the TC7200 accidentaly. There are two serial ports. One is easily reachable and gives access to the bootloader which lets you r/w memory (and jump to anything in memory). The second one is under the cooler. <s>You</s> Your cat can easily solder <s>yourself</s> itself on it from the back of the pcb, if <s>you</s> your cat doesn't want to remove it. You'll see linux booting, you can login with your webinterface credentials, but it kicks you out immediately because you don't have a shell. Just in case anyone want's to work on what my cat has discovered. It is leased with my ISP contract, so I would never open it myself.
    - mschuster91 12y ago
      Linux based? Well fuck Technicolor then, there's no mention of GPL source code... and I would not be surprised if it's U-boot based. As for the "fuck" part, AVM with the Fritzbox ain't a bit better, though. Looks like all cable routers are locked down and no sources available - probably to prevent people from building DOCSIS sniffers or network disrupters (30-apartment house, all connected via DOCSIS on one link, now good luck finding the asshole).
    - 12y ago
Johan-bjareholt 12y ago
I have experienced the opposite with my MacBook Air. I have a Asus RT ac 66u router and use 5ghz on both the air and my Acer Chromebook c720 with archlinux installed on it using NetworkManager. The the MacBook Air takes about 6sec to connect to the wifi while my Chromebook takes less than 2 seconds. Both can load Internet pages instantly after the OS reports that it's connected. I have no idea why the MacBook takes so long, but I recently did a fresh install on it and got the same results
- i386 12y ago
  I see the same issues on my MBA
- microcolonel 12y ago
  How did you get suspend and resume running on the C720? I have a C720P and I've been trying to get it to resume at all(it freezes when I reopen the lid)
Johan-bjareholt 12y ago
I have experienced the opposite with my MacBook Air. I have a Asus RT ac 66u router and use 5ghz on both the air and my Acer Chromebook c720 with archlinux installed on it using NetworkManager. The the MacBook Air takes about 6sec to connect to the wifi while my Chromebook takes less than 2 seconds. Both can load Internet pages instantly after the OS reports that it's connected. I have no idea why the MacBook takes so long, but I recently did a fresh install on it and got the same results

Scramblejams 12y ago

"...that is in the pipeline already for Linux." Would you have a link to this?

Adaptive 12y ago
http://www.phoronix.com/scan.php?page=news_item&px=MTY1Mjc http://www.phoronix.com/scan.php?page=news_item&px=MTY1Mjc
- josteink 12y ago
  I recommend moving past this blog-fluff and going directly to the Google+ announcement[1]. Quite impressive improvements. Can't wait until this goes live on normal distros. [1] https://plus.google.com/+TomGundersen/posts/eztZWbwmxM8 https://plus.google.com/+TomGundersen/posts/eztZWbwmxM8

zabcik 12y ago

Is btrfs stable with hibernate now? The last couple of times I used it, it crashed on me.

Adaptive 12y ago
I had a couple problems requiring a btrfsck, specifically related to google-chrome cache directories. Never had it since. I use btrfs snapshotting a lot (for convenient system rollback). I definitely am not running btrfs on a production machine, but I love it on this laptop. Wouldn't call it stable yet. edit to note that I don't hibernate, just sleep.
zanny 12y ago
I don't know you'd ever use hibernate anymore. I can cold boot to desktop faster than it takes to read 16GB of ram contents off a mechanical drive.
- reedalex01 12y ago
  Speed isn't the only consideration. If you're using disk encryption, the only way to remove keys from RAM is to power off or hibernate. Preserving state between sessions with hibernation is much more convenient. Also, Linux only uses RAM * 2/5 as the size of the hibernation image [1]. You can make this even smaller by changing /sys/power/image_size. So with 16GB of RAM, it only has to write/read about 6.4GB. [1] https://www.kernel.org/doc/Documentation/power/interface.txt https://www.kernel.org/doc/Documentation/power/interface.txt
  - ciupicri 12y ago
    If you use hibernate won't the keys be stored on the swap partition?
    - reedalex01 12y ago
      You can use LVM to make the swap partition inside the encrypted container. If you don't want to use LVM, you can just use a swap file on an encrypted partition (but this isn't supported with btrfs).

nextos 12y ago

Slightly tangential, but I have almost the same setup (Arch + Thinkpad) and I've noticed slower shutdown times since ~3.12 due to systemd taking down oldroot. Are you experiencing the same thing?

maccard 12y ago

> Notable OS X still brings networking back up faster With the notable point that it doesn't work properly on a lot of hardware, in my experience (and in the experience of others I know). The major ISP in ireland provides the same box for most connections, and my mac just will not hold a connection to them when resuming from sleep. It appears to be an issue revolving around assignment of IP addresses, but I can't reproduce it, and it doesn't happen on my work network or uni network, but every UPC network I use with the same equipment (Technicolor TC7200U) has the issue.

mschuster91 12y ago
Gosh, TC7200 units just suck. I replaced mine with a Fritzbox and poof, no more random network stalls, suspend issues etc.
- lawl 12y ago
  Offtopic: My cat opened the TC7200 accidentaly. There are two serial ports. One is easily reachable and gives access to the bootloader which lets you r/w memory (and jump to anything in memory). The second one is under the cooler. <s>You</s> Your cat can easily solder <s>yourself</s> itself on it from the back of the pcb, if <s>you</s> your cat doesn't want to remove it. You'll see linux booting, you can login with your webinterface credentials, but it kicks you out immediately because you don't have a shell. Just in case anyone want's to work on what my cat has discovered. It is leased with my ISP contract, so I would never open it myself.
  - mschuster91 12y ago
    Linux based? Well fuck Technicolor then, there's no mention of GPL source code... and I would not be surprised if it's U-boot based. As for the "fuck" part, AVM with the Fritzbox ain't a bit better, though. Looks like all cable routers are locked down and no sources available - probably to prevent people from building DOCSIS sniffers or network disrupters (30-apartment house, all connected via DOCSIS on one link, now good luck finding the asshole).
  - 12y ago

Johan-bjareholt 12y ago

I have experienced the opposite with my MacBook Air. I have a Asus RT ac 66u router and use 5ghz on both the air and my Acer Chromebook c720 with archlinux installed on it using NetworkManager. The the MacBook Air takes about 6sec to connect to the wifi while my Chromebook takes less than 2 seconds. Both can load Internet pages instantly after the OS reports that it's connected. I have no idea why the MacBook takes so long, but I recently did a fresh install on it and got the same results

i386 12y ago
I see the same issues on my MBA
microcolonel 12y ago
How did you get suspend and resume running on the C720? I have a C720P and I've been trying to get it to resume at all(it freezes when I reopen the lid)

Johan-bjareholt 12y ago